The title compound {[Cu(abpy)2](H3bptc)·(H2O)}n, an ion-pair complex of [Cu(abpy)2]+ with [(H3bptc)]- (abpy = 3,3'-dimethyl-2,2'-bipyridine and H4bptc = 1,1'-biphenyl-2,2',3,3'-tetracarboxylic a...The title compound {[Cu(abpy)2](H3bptc)·(H2O)}n, an ion-pair complex of [Cu(abpy)2]+ with [(H3bptc)]- (abpy = 3,3'-dimethyl-2,2'-bipyridine and H4bptc = 1,1'-biphenyl-2,2',3,3'-tetracarboxylic acid), has been synthesized by a hydrothermal reaction, and its structure was deter- mined by X-ray diffraction and characterized by elemental analysis and IR spectrum. The crystal is of triclinic, space group P1 with a = 8.4955(12), b = 15.164(2), c = 15.303(2), α = 105.704(3), β = 97.374(3), γ = 96.764(3)o, CuC40H35N4O9, Mr = 779.26, V = 1857.9(4)3, Dc = 1.393 g/cm3, F(000) = 808, μ = 0.649 mm-1, S = 1.026 and Z = 2. The final R = 0.0493 and wR = 0.1034 for 4026 observed reflections with I 2σ(I). The copper(I) coordination polymer demonstrates a 3-D sandwich-type structure containing 2-D double H3bptc-chain layers intercalated with the [Cu(abpy)2]+ layers by extensive hydrogen bonding interactions.展开更多
Based on the theory of crystallization,a solvent-free solid-liquid phase crystallization method called solid-melt crystallization was designed to prepare energetic coordination polymers.Two target compounds[Cu(NPyz)_(...Based on the theory of crystallization,a solvent-free solid-liquid phase crystallization method called solid-melt crystallization was designed to prepare energetic coordination polymers.Two target compounds[Cu(NPyz)_(4)NO_(3)]·NO_(3)(ECPs-1)and Cu(NPyz)_(4)(ClO_(4))_(2)(ECCs-2)were prepared through programmed heating and cooling by using 4-nitropyrazole(NPyz),(Cu(NO_(3))_(2)·5H_(2)O and Cu(ClO_(4))_(2)·5H_(2)O) as raw materials.In addition,crystallization pre-experiments and annealing experiments also verified the feasibility of the method.Their structures were confirmed by IR,elemental analysis,single-crystal X-ray diffraction and powder X-ray diffraction.The physicochemical properties and sensitivity test results showed that ECCs-2 has better thermal stability(T_(d)=221℃),while ECPs-1 is less sensitive to mechanical stimuli(IS=12 J,FS=240 N).Calculations based on EXPLO5 and the Kamlet-Jacobs equation showed that ECCs-2 has more considerable detonation performance(P=25.2 GPa,D=7.5 km/s).In comparison,the more intuitive results from the HN test,flame test,thermal resistance test and lead plate explosion test revealed that ECCs-2 has an“acceptable”detonation performance.The laser detonation test also showed that ECCs-2 is a promising excellent laser detonation material(E=408 mJ,P=24 W,τ=17 ms).展开更多
In this study,lipases of CALB(Candida antarctica lipase B),TLL(Thermomyces lanuginosa lipase),RML(Rhizomucor miehei lipase),CALA(Candida antarctica lipase A)and LU(Lecitase?Ultra)were encapsulated into the nucleotideh...In this study,lipases of CALB(Candida antarctica lipase B),TLL(Thermomyces lanuginosa lipase),RML(Rhizomucor miehei lipase),CALA(Candida antarctica lipase A)and LU(Lecitase?Ultra)were encapsulated into the nucleotidehybrid metal coordination polymers(CPs)for diacylglyerols(DAG)preparation.Guanosine 5'-monophosphate(GMP)and adenosine 5'-monophosphate(AMP)were used as coordinating molecules,and metal ions of Fe^(3+),Ba^(2+),Mn^(2+),Ni^(2+)and Cr^(3+)were applied to prepare matrix.Results indicated that,besides Ba^(2+)with AMP,all other metal ions can coordinate with AMP and GMP to generate CPs.In addition,the AMP/Ni was amorphous when standing temperature was 4℃,while it was crystalline when standing temperature was from 30 to 180℃.DAG content from 47.55%to 64.99%was obtained from glycerolysis by CALB@GMP/Ba,RML@GMP/Ba,TLL@GMP/Ba,RML@GMP/Mn and TLL@GMP/Mn.Additionally,CALB@GMP/Fe showed selectivity towards DAG formation in the esterification and DAG content up to 61.88%was obtained.展开更多
A one-dimensional chain coordination polymer [Cu(phen)(2,4,6-TMBA)2(H2O)]n has been synthesized by reacting 2,4,6-trimethyl-benzoic acid, 1,10-phenanthroline and Cu(Ⅱ) perchlorate and its structure was charac...A one-dimensional chain coordination polymer [Cu(phen)(2,4,6-TMBA)2(H2O)]n has been synthesized by reacting 2,4,6-trimethyl-benzoic acid, 1,10-phenanthroline and Cu(Ⅱ) perchlorate and its structure was characterized. Crystal data for this complex: tetragonal, space group I41, a = 2.0293(3), b = 2.0293(3), c = 1.3758(2) nm, α =β= γ = 90°, V= 5.6657(13) nm3, Dc= 1.379 g/cm3, Z = 8, μ(MoKa) = 0.815 mm-1, Mr = 588.14, F(000) = 2456, S = 1.047, R = 0.0459 and wR = 0.1053. The crystal structure shows that two neighboring Cu(Ⅱ) ions are linked together by one bridging-chelating 2,4,6-trimethyl-benzoic group, forming a one-dimensional chain structure. Each Cu(Ⅱ) ion is coordinated with two nitrogen atoms from one 1,10-phenanthroline molecule, three oxygen atoms from three 2,4,6-trimethyl-benzoic acid molecules and one oxygen atom from one water molecule, giving a six-coordinate distorted octahedral coordination geometry. The cyclic voltammetry behavior of the complex was also investigated.展开更多
The title compound [Cu(bbpy)(H2bptc)]n (bbpy = 4,4'-dimethyl-2,2'-bipyridine and H4bptc = 1,1'-biphenyl-2,2?,3,3'-tetracarboxylic acid) has been synthesized by hydrothermal reaction, and its structure was d...The title compound [Cu(bbpy)(H2bptc)]n (bbpy = 4,4'-dimethyl-2,2'-bipyridine and H4bptc = 1,1'-biphenyl-2,2?,3,3'-tetracarboxylic acid) has been synthesized by hydrothermal reaction, and its structure was determined by X-ray diffraction and characterized by elemental analysis, IR spectrum and thermogravimetric analysis. The crystal is of triclinic, space group P1 with a = 11.2831(12), b = 11.6718(13), c = 11.7771(13), α = 105.392(2), β = 108.382(2), γ = 112.397(2)o, CuC28H20N2O8, Mr = 576.00, V = 1222.4(2)3, Dc = 1.565 g/cm3, F(000) = 590, μ = 0.951 mm-1, S = 1.022 and Z = 2. The final refinement gave R = 0.0405 and wR = 0.1142 for 4270 observed reflections with I 2σ(I). The title complex has a 1D [Cu(bbpy)(H2bptc)]n chain structure, in which the extensive hydrogen-bond interactions make the chain more stable. The neighboring parallel chains are further packed into a 2D layer structure via π···π stacking interaction between the pyridine rings of bbpy ligands. Moreover, the adjacent layers are interconnected by the C–H···π interactions to form a 3D metal-organic framework.展开更多
A new one-dimensional copper coordination polymer chain has been prepared and fully characterized by single-crystal X-ray diffraction, elemental analyses and IR spectroscopy. The compound { [Cu2(C2O4)2(inta)4](i...A new one-dimensional copper coordination polymer chain has been prepared and fully characterized by single-crystal X-ray diffraction, elemental analyses and IR spectroscopy. The compound { [Cu2(C2O4)2(inta)4](inta)}n 1 crystallizes in the triclinic system, space group P1, with a = 8.4722(5), b = 10.9825(6), c = 11.6128(6)A, α= 104.8050(10),β = 102.5740(10), γ= 109.6890(10)°, V= 927.18(9) A3, Mr = 929.79, Z = 1, Dc = 1.665 g/cm^3, F(000) = 475, μ = 1.231 mm^-1, R = 0.0453 and wR = 0.1185 for 3290 observed reflections (Ⅰ 〉 2σ(Ⅰ)). Of the compound, the Cu center is octahedrally coordinated with oxalate acting as a tetra-dentate ligand coordinated to the copper atom and each inta serving as a terminal ligand by employing only one N-donor to coordinate with the Cu center. An infinite {Cu2(C2O4)2}∞ chain is formed along the c axis. Furthermore, the 1D chains are held together via extensive hydrogen-bonding interactions to generate a three-dimensional network with 1D channels (ca. 5.491A×11.507A) where inta molecules are filled.展开更多
A new one-dimensional Mg(Ⅱ) coordination polymer, [Mg(L)(phen)(H2O)](1), has been hydrothermally synthesized by using 3,5-dinitro-salicylic acid(H2L) and 1,10-phenanthroline(phen). It crystallizes in mo...A new one-dimensional Mg(Ⅱ) coordination polymer, [Mg(L)(phen)(H2O)](1), has been hydrothermally synthesized by using 3,5-dinitro-salicylic acid(H2L) and 1,10-phenanthroline(phen). It crystallizes in monoclinic, space group C2/c with a = 33.038(7), b = 6.6481(13), c = 22.750(5) A, β = 126.99(3)°, V = 3991.1(14) A3, Z = 8, C19H12 MgN4O8, Mr = 448.64, Dc = 1.493 g/cm3, F(000) = 1840, μ(Mo Ka) = 0.146 mm-1, R = 0.0559 and w R = 0.0975. In 1, each L anion bridges two Mg(Ⅱ) atoms to give one-dimensional zigzag chains with the Mg…Mg separation of 5.34 ?, which are extended by π-π stacking interactions between 1,10-phenanthroline ligands into a two-dimensional supramolecular layer. Moreover, the O–H…O hydrogen-bonding interactions further stabilize the layer structure of 1. The luminescent property was also studied for 1 in solid state at room temperature. In addition, natural bond orbital(NBO) analysis was performed by the B3LYP/LANL2 DZ method in Gaussian 09 Program. The calculation results show obvious covalent interaction between the coordinated atoms and Mg(Ⅱ) ion.展开更多
Two new coordination polymers,named {[Co3(pfca)6(phen)2]·2H2O}n(1) and[Cu(pfca)2(4,4'-bpy)(H2O)]n(2)(Hpfca = 4-fluorocinnamic acid and 4,4-bpy = 4,4-bipyridine),were hydrothermally synthesized an...Two new coordination polymers,named {[Co3(pfca)6(phen)2]·2H2O}n(1) and[Cu(pfca)2(4,4'-bpy)(H2O)]n(2)(Hpfca = 4-fluorocinnamic acid and 4,4-bpy = 4,4-bipyridine),were hydrothermally synthesized and characterized by elemental analysis,IR spectroscopy,thermogravimetric analysis(TGA),and single-crystal X-ray diffraction.Complex 1 crystallizes in the triclinic crystal system,space group P1 with a = 10.939(3),b = 12.430(4),c = 13.815(4) A,α=78.436(3),β= 70.261(3),γ= 80.268(3)°,V= 1721.8(9) A^3,Dc = 1.508 g/cm^3,Mr= 1564.06,Z = 1,F(000) = 799,μ= 0.802 mm^(-1),the final R = 0.0432 and wR = 0.1015 for 13250 observed reflections with I 2σ(I).Complex 2 is of monoclinic system,space group P2/lc with a =15.4985(14),b = 15.8424(14),c = 10.9528(10) A,β= 107.1600(10)°,V= 2569.6(4) A^3,Dc = 1.468g/cm^3,Mr = 568.02,Z = 4,F(000) = 1164,μ= 0.906 mm^(-1),the final R = 0.0371 and wR = 0.0842 for 18183 observed reflections with I〉 2σ(I).Complex 1 features linear Co(Ⅱ)-trinuclear units,which are assembled into a final 3D supramolecular structure through π…π stacking interactions and F-H weak interactions.Complex 2 consists of 1D polymeric Cu(Ⅱ)-chains that are further cohered together by extensive H-bonds.展开更多
A new copper coordination polymer[Cu2I(C7H5N4)2]n(1)with the 3-(pyridin-2-yl)-1,2,4-triazole(Hpt)and copper iodide was synthesized.It crystallizes in the triclinic space group P1 with a=8.6380(9),b=9.2434(9),c=11.8588...A new copper coordination polymer[Cu2I(C7H5N4)2]n(1)with the 3-(pyridin-2-yl)-1,2,4-triazole(Hpt)and copper iodide was synthesized.It crystallizes in the triclinic space group P1 with a=8.6380(9),b=9.2434(9),c=11.8588(12)A,α=99.5890(10)o,β=109.0990(10)o,γ=105.2800(10)o,V=829.25(15)A^3,Dc=2.180 g/cm3,Z=2,F(000)=522,GOOF=1.046,the final R=0.0245 and wR=0.0598.The crystal structure shows that two copper ions are bridged by twoμ2-η1:η0-3-(pyridin-2-yl)-1,2,4-triazole anions and two iodide ions.The coordination environments of the Cu ion are Cu(1)N5 and Cu(2)N2I2,giving distorted square pyramidal geometry and trigon pyramid geometry.The magnetic and fluorescent properties of 1 were studied.展开更多
A new Cd(Ⅱ) coordination polymer, [Cd(L)2(H2O)]n(1), has been hydrothermally synthesized by using 1-(1 H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)naphthalen-2-ol(HL),(3-(4-(carboxymethoxy)phenyl)acrylic acid and Cd(NO3...A new Cd(Ⅱ) coordination polymer, [Cd(L)2(H2O)]n(1), has been hydrothermally synthesized by using 1-(1 H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)naphthalen-2-ol(HL),(3-(4-(carboxymethoxy)phenyl)acrylic acid and Cd(NO3)·4 H2O. It crystallizes in monoclinic, space group P21/c with a = 19.41(2), b = 11.078(12), c = 20.09(2)A, β = 116.824(17)°, V = 3855(7)A^3, Z = 4, C46H28CdN8O3, Mr = 853.17, Dc = 1.470 g/cm^3, F(000) = 1728, μ(Mo Ka) = 0.621 mm^-1, R = 0.0338 and wR = 0.0890. 1 shows a one-dimensional(1D) zigzag chain structure. The neighboring chains are extended into a two-dimensional(2D) layer structure by π-π interactions between adjacent L ligands. In addition, Natural Bond Orbital(NBO) analysis was performed by the B3LYP/LANL2DZ method in Gaussian 09 Program. The calculation results show the obvious covalent interaction between the coordinated atoms and Cd(Ⅱ) ion.展开更多
A new Cu(Ⅰ) coordination polymer(CP) formulated as [Cu2(L)(CN)2]n(1, L =1,1′-bis(5,6-dimethylbenzimidazole)methane) was synthesized, in which the cyanide anions were generated in situ by the cleavage of C–C bond of...A new Cu(Ⅰ) coordination polymer(CP) formulated as [Cu2(L)(CN)2]n(1, L =1,1′-bis(5,6-dimethylbenzimidazole)methane) was synthesized, in which the cyanide anions were generated in situ by the cleavage of C–C bond of acetonitrile under hydrothermal conditions. CP 1 was characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. It crystallizes in the orthorhombic system, Pccn space group, with a = 10.314(3), b = 20.966(7), c =9.432(3)?, V = 2039.5(11)?3, Z = 4, C21 H20 Cu2 N6, Mr = 483.51, Dc = 1.575 g×cm^-3,μ= 2.105 mm-1 and F(000)= 984, the final R = 0.0608 and wR = 0.1942 for 1226 observed reflections with Ⅰ> 2s(Ⅰ)for the CP 1. The CP 1 possesses a 2D {63} layer structure which is composed of Cu(Ⅰ) centers bridged by L and CN– ligands. The thermal stability and luminescence properties of CP 1 are discussed in detail. The complex also displays a remarkable activity for the degradation of methyl orange by hydrogen peroxide in a Fenton-like process.展开更多
Hydrothermal treatment of MCl2 ( M = Co or Cu ) , NH4 VO3, and 1,10-phenanthroline-5,6-dione (pdon) resulted in the formation of a duplex coordination polymer [ Co ( bpdc ) ( H2O ) 3 ] · H2O ( bpdc = 2,2...Hydrothermal treatment of MCl2 ( M = Co or Cu ) , NH4 VO3, and 1,10-phenanthroline-5,6-dione (pdon) resulted in the formation of a duplex coordination polymer [ Co ( bpdc ) ( H2O ) 3 ] · H2O ( bpdc = 2,2'-bipyridine-3,3'-dicarboxylate) and a chain-like coordination polymer [ Cu (bpy) V2O6 ] ( bpy = 2,2'-bipyridine ). X-ray single-crystal structural analysis shows that under hydrothermal conditions and in the presence of different transition metals, the organic reagent pdon was transformed in situ into bpdc and bpy, respectively. Mechanism of the in situ ligand synthesis reaction has been discussed.展开更多
A novel coordination polymer of Cu II with flexible ligands,namely,[Cu 3 (mal) 2 (di2-pyridlyktone) 2 ] (1,H 2 mal=maleic acid),was synthesized and characterized by single-crystal X-ray diffraction,thermogravime...A novel coordination polymer of Cu II with flexible ligands,namely,[Cu 3 (mal) 2 (di2-pyridlyktone) 2 ] (1,H 2 mal=maleic acid),was synthesized and characterized by single-crystal X-ray diffraction,thermogravimetric analyses,elemental analysis and IR spectroscopy.The structure indicates that the complex crystallizes in monoclinic,space group P2 1 /c with a=10.268(2),b=17.737(3),c=8.038(1),β=98.275(2)°,V=1448.6(4) 3,Z=2,D c=1.883 Mg·m-3,μ=2.260 mm-1,F(000)=826,and the final R=0.0321 and wR=0.0820.In 1,three Cu II centers (Cu(1),Cu(2),Cu(1A)) are bridged by two uncommon μ 3-bridging H 2 mal ligands,furnishing a centrosymmetric trimetallic unit.Via further Cu-O COO coordination interactions,extention of these trimetallic units in two directions gives rise to an infinite corrugated 2D layer.In addition,thermal stability and electrochemistry of 1 were studied.展开更多
A new mellitate complex [Cu3(μ2-mellitate)(μ2-H2O)(H2O)2·H2O]n 1 has been synthesized by the reaction of mellitic acid and Cu(CH3COO)2·H2O in the presence of base. Crystallographic data for 1: C12...A new mellitate complex [Cu3(μ2-mellitate)(μ2-H2O)(H2O)2·H2O]n 1 has been synthesized by the reaction of mellitic acid and Cu(CH3COO)2·H2O in the presence of base. Crystallographic data for 1: C12H8O16Cu3, Mr = 598.80, orthorhombic, Pbcn, a = 8.4378(6), b = 10.0396(7), c = 17.6799(12)A, V = 1497.70(18)A^3, Z = 4, De = 2.656 g/cm^3, μ = 4.327 mm^-1, F(000) = 1180, R = 0.0431 and wR = 0.0964 for 1075 observed reflections (I 〉 2σ(I)). X-ray crystal structural analysis revealed that the mellitate anions behave as the bridging ligands and link eight copper atoms repeatedly to form a novel three-dimensional metal-organic coordination polymer with two different rhombic tunnels in the solid-state structure.展开更多
A complex {[Cu(tib)2(H2O)2]·(NO3)2}n(1) has been synthesized under N,N-dimethylacetamide(DMA) and water conditions. The structure of complex 1 was characterized by single-crystal X-ray crystallography. ...A complex {[Cu(tib)2(H2O)2]·(NO3)2}n(1) has been synthesized under N,N-dimethylacetamide(DMA) and water conditions. The structure of complex 1 was characterized by single-crystal X-ray crystallography. It crystallizes in monoclinic, space group P21/n with a = 10.6273(7), b = 11.4184(7), c = 13.4215(8) A, β = 108.290(2)°, V = 1546.38(17)A3, Z = 2, F(000) = 798, Dc = 1.667 g/cm3 and m = 0.786 mm-1) Complex 1 exhibits a 3D network due to the existence of O–H…O interaction between coordinated water and nitrate anions. Furthermore, complex 1 has a good catalytic activity for the reduction of 4-nitrophenol in Na BH4 solution.展开更多
A new metal-organic coordination polymer [Zn(hfipbb)(e-urea)]n(1,H2hfipbb = 4,4'-(hexafluoroisopropylidene)bis(benzoic acid),e-urea = ethylene urea) has been urothermally synthesized and characterized by el...A new metal-organic coordination polymer [Zn(hfipbb)(e-urea)]n(1,H2hfipbb = 4,4'-(hexafluoroisopropylidene)bis(benzoic acid),e-urea = ethylene urea) has been urothermally synthesized and characterized by elemental analysis and single-crystal X-ray diffraction.The title complex crystallizes in monoclinic,space group P21/c with a = 13.302(4),b = 10.981(3),c = 13.804(4) ,β = 93.587(5)°,V = 2012.3(10) 3,C20H14N2O5F6Zn,Mr = 541.72,Z = 4,Dc = 0.447 g/cm3, = 0.328 mm-1,F(000) = 272,R = 0.0340 and wR = 0.1107 for 4528 observed reflections(I 〉2σ(I)).In the structure of compound 1,two Zn(Ⅱ) ions are bridged by two carboxylate groups from two hfipbb ligands to form a dinuclear unit,and each dinuclear Zn(Ⅱ) unit is linked with its two adjacent dinuclear units through four hfipbb ligands into an infinite one-dimensional double-chain.The interesting structural feature of compound 1 is that the one-D double-chains are self-interconnected into a three-D supramolecular structure through hydrogen bonds between the coordinated e-urea molecules and carboxylate oxygen atoms(N1 and O2,N2 and O4).展开更多
A new complex [Cu(L)(1,10-phen)]n (1, L = N-3-pyridine sulfonyl amino acid) has been synthesized and characterized by IR, elemental analysis and X-ray diffraction analysis, and its crystal belongs to monoclinic,...A new complex [Cu(L)(1,10-phen)]n (1, L = N-3-pyridine sulfonyl amino acid) has been synthesized and characterized by IR, elemental analysis and X-ray diffraction analysis, and its crystal belongs to monoclinic, space group P2Jc with a = 11.481 (2), b = 1 8.094(4), c = 8.5198(17) ]°, β= 102.26(3)°, V = 1729.5(6) ,/k3, Z = 4, Dc = 1.759 g/cm3, F(000) = 932, p = 1.422 mm-1, R = 0.0368 and wR = 0.0893. In 1, the Cu(ll) ion adopts a slightly distorted five-coordinated square pyramidal geometry. The L2- ligand adopts O of the carboxyl bridging adjacent Cu(Ⅱ)units to form an infinite chain structure along the c axis. Also, π-π stacking interactions between the adjacent chains expanded the 1-D structures into a 3-D supramolecular structure.展开更多
Under hydrothermal conditions, the reactions of NiII/CuII ions with 3-(6-aminpyri- dinium-3-yl) benzoate (HL) afford two compounds [NiL2]n (1) and [CuL2(H2O)]n (2). On the basis of X-ray diffraction analysis...Under hydrothermal conditions, the reactions of NiII/CuII ions with 3-(6-aminpyri- dinium-3-yl) benzoate (HL) afford two compounds [NiL2]n (1) and [CuL2(H2O)]n (2). On the basis of X-ray diffraction analysis of the two compounds, the results show that compound 1 features one-dimensional (1D) double-strand coordination arrays, while 2 presents the 63-hcb layers. Both compounds are further constructed into a 3D supramolecular structure with the aid of weak secondary interactions. Thermal stabilities and magnetic properties of compounds 1 and 2 were also investigated.展开更多
A chiral supramolecular coordination polymer, [Co(HL)·(DMF)]n(1), with helical chains from a flexible ligand 5-(imidazol-1-ylmethyl)isophthalic acid(H2L) has been obtained under hydrothermal conditions ...A chiral supramolecular coordination polymer, [Co(HL)·(DMF)]n(1), with helical chains from a flexible ligand 5-(imidazol-1-ylmethyl)isophthalic acid(H2L) has been obtained under hydrothermal conditions and characterized by elemental analysis, powder X-ray diffraction(PXRD), IR, Uv/vis spectra, thermal gravimetric analyses(TGA) and also by single-crystal X-ray diffraction. It crystallizes in hexagonal, space group P6522 with a = 8.8109(3), b = 8.8109(3), c = 71.771(3) , γ = 120°, V = 4825.3(3) -3, Z = 6, Mr = 695.55, Dc = 1.436 g/cm-3, Rint = 0.0684, F(000) = 2166, the final R = 0.0923 and w R = 0.2697 for 3056 observed reflections(I 2σ(I)). The title coordination polymer 1 shows a chiral layered structure based on right-handed helix chains. Such layers are associated together through hydrogen-bonding interactions to form a 3D supramolecular framework.展开更多
The title compound [Cu(HSSA)(py)3H2O]n (H3SSA = 5-sulfosalicylic acid, py = pyridine) I has been synthesized and structurally determined by single-crystal X-ray diffraction. I was further characterized by elemen...The title compound [Cu(HSSA)(py)3H2O]n (H3SSA = 5-sulfosalicylic acid, py = pyridine) I has been synthesized and structurally determined by single-crystal X-ray diffraction. I was further characterized by elemental analyses, thermogravimetric analyses, IR and UV-visible spectroscopy. The crystal belongs to the monoclinic system, space group P21/c with a = 9.4564(10), b = 18.2679(19), c = 15.7284(12) A,β= 126.045(4)°, V= 2196.9(4)A^3, Z= 4, Dc = 1.618 g/cm^3, Mr = 535.02,μ = 1.141 mm^-1, F(000) = 1100, 2(MoKα) = 0.71073 A, the final R = 0.0429 and wR = 0.1044 for all observed reflections. In the structure, every two Cu(II) atoms are bridged by a bivalent 5-sulfosalicylic anion to form a 1D chain-like coordination polymer. Lattice waters between chains link them to form 2D layers which are further linked by C-H…O hydrogen bonds to form a three-dimensional supramolecular network.展开更多
基金supported by the National Natural Science Foundation of China (No. 10947162)the Natural Science Foundation of Henan Province (No. 2010A140009)the International Technology Cooperation Project of Science and Technology Department of Henan Province (No. 104300510044)
文摘The title compound {[Cu(abpy)2](H3bptc)·(H2O)}n, an ion-pair complex of [Cu(abpy)2]+ with [(H3bptc)]- (abpy = 3,3'-dimethyl-2,2'-bipyridine and H4bptc = 1,1'-biphenyl-2,2',3,3'-tetracarboxylic acid), has been synthesized by a hydrothermal reaction, and its structure was deter- mined by X-ray diffraction and characterized by elemental analysis and IR spectrum. The crystal is of triclinic, space group P1 with a = 8.4955(12), b = 15.164(2), c = 15.303(2), α = 105.704(3), β = 97.374(3), γ = 96.764(3)o, CuC40H35N4O9, Mr = 779.26, V = 1857.9(4)3, Dc = 1.393 g/cm3, F(000) = 808, μ = 0.649 mm-1, S = 1.026 and Z = 2. The final R = 0.0493 and wR = 0.1034 for 4026 observed reflections with I 2σ(I). The copper(I) coordination polymer demonstrates a 3-D sandwich-type structure containing 2-D double H3bptc-chain layers intercalated with the [Cu(abpy)2]+ layers by extensive hydrogen bonding interactions.
基金the projects of National Natural Science Foundation of China(Grant Nos.22175025 and 21905023)for their generous financial support.
文摘Based on the theory of crystallization,a solvent-free solid-liquid phase crystallization method called solid-melt crystallization was designed to prepare energetic coordination polymers.Two target compounds[Cu(NPyz)_(4)NO_(3)]·NO_(3)(ECPs-1)and Cu(NPyz)_(4)(ClO_(4))_(2)(ECCs-2)were prepared through programmed heating and cooling by using 4-nitropyrazole(NPyz),(Cu(NO_(3))_(2)·5H_(2)O and Cu(ClO_(4))_(2)·5H_(2)O) as raw materials.In addition,crystallization pre-experiments and annealing experiments also verified the feasibility of the method.Their structures were confirmed by IR,elemental analysis,single-crystal X-ray diffraction and powder X-ray diffraction.The physicochemical properties and sensitivity test results showed that ECCs-2 has better thermal stability(T_(d)=221℃),while ECPs-1 is less sensitive to mechanical stimuli(IS=12 J,FS=240 N).Calculations based on EXPLO5 and the Kamlet-Jacobs equation showed that ECCs-2 has more considerable detonation performance(P=25.2 GPa,D=7.5 km/s).In comparison,the more intuitive results from the HN test,flame test,thermal resistance test and lead plate explosion test revealed that ECCs-2 has an“acceptable”detonation performance.The laser detonation test also showed that ECCs-2 is a promising excellent laser detonation material(E=408 mJ,P=24 W,τ=17 ms).
基金the National Natural Science Foundation of China(31772000)。
文摘In this study,lipases of CALB(Candida antarctica lipase B),TLL(Thermomyces lanuginosa lipase),RML(Rhizomucor miehei lipase),CALA(Candida antarctica lipase A)and LU(Lecitase?Ultra)were encapsulated into the nucleotidehybrid metal coordination polymers(CPs)for diacylglyerols(DAG)preparation.Guanosine 5'-monophosphate(GMP)and adenosine 5'-monophosphate(AMP)were used as coordinating molecules,and metal ions of Fe^(3+),Ba^(2+),Mn^(2+),Ni^(2+)and Cr^(3+)were applied to prepare matrix.Results indicated that,besides Ba^(2+)with AMP,all other metal ions can coordinate with AMP and GMP to generate CPs.In addition,the AMP/Ni was amorphous when standing temperature was 4℃,while it was crystalline when standing temperature was from 30 to 180℃.DAG content from 47.55%to 64.99%was obtained from glycerolysis by CALB@GMP/Ba,RML@GMP/Ba,TLL@GMP/Ba,RML@GMP/Mn and TLL@GMP/Mn.Additionally,CALB@GMP/Fe showed selectivity towards DAG formation in the esterification and DAG content up to 61.88%was obtained.
基金supported by the Foundation of Education Committee of Hunan Province(06C195)the Research Award Fund for Outstanding Young Teachers of Hengyang Normal University(2006)Supported by the construct program of the key discipline in hunan province.
文摘A one-dimensional chain coordination polymer [Cu(phen)(2,4,6-TMBA)2(H2O)]n has been synthesized by reacting 2,4,6-trimethyl-benzoic acid, 1,10-phenanthroline and Cu(Ⅱ) perchlorate and its structure was characterized. Crystal data for this complex: tetragonal, space group I41, a = 2.0293(3), b = 2.0293(3), c = 1.3758(2) nm, α =β= γ = 90°, V= 5.6657(13) nm3, Dc= 1.379 g/cm3, Z = 8, μ(MoKa) = 0.815 mm-1, Mr = 588.14, F(000) = 2456, S = 1.047, R = 0.0459 and wR = 0.1053. The crystal structure shows that two neighboring Cu(Ⅱ) ions are linked together by one bridging-chelating 2,4,6-trimethyl-benzoic group, forming a one-dimensional chain structure. Each Cu(Ⅱ) ion is coordinated with two nitrogen atoms from one 1,10-phenanthroline molecule, three oxygen atoms from three 2,4,6-trimethyl-benzoic acid molecules and one oxygen atom from one water molecule, giving a six-coordinate distorted octahedral coordination geometry. The cyclic voltammetry behavior of the complex was also investigated.
基金Supported by the National Natural Science Foundation of China (No. 10947162)the Natural Science Foundation of Henan Province (No. 2010A140009)the International Technology Cooperation Project of Science and Technology Department of Henan Province (No. 104300510044)
文摘The title compound [Cu(bbpy)(H2bptc)]n (bbpy = 4,4'-dimethyl-2,2'-bipyridine and H4bptc = 1,1'-biphenyl-2,2?,3,3'-tetracarboxylic acid) has been synthesized by hydrothermal reaction, and its structure was determined by X-ray diffraction and characterized by elemental analysis, IR spectrum and thermogravimetric analysis. The crystal is of triclinic, space group P1 with a = 11.2831(12), b = 11.6718(13), c = 11.7771(13), α = 105.392(2), β = 108.382(2), γ = 112.397(2)o, CuC28H20N2O8, Mr = 576.00, V = 1222.4(2)3, Dc = 1.565 g/cm3, F(000) = 590, μ = 0.951 mm-1, S = 1.022 and Z = 2. The final refinement gave R = 0.0405 and wR = 0.1142 for 4270 observed reflections with I 2σ(I). The title complex has a 1D [Cu(bbpy)(H2bptc)]n chain structure, in which the extensive hydrogen-bond interactions make the chain more stable. The neighboring parallel chains are further packed into a 2D layer structure via π···π stacking interaction between the pyridine rings of bbpy ligands. Moreover, the adjacent layers are interconnected by the C–H···π interactions to form a 3D metal-organic framework.
基金the Education Office of Jilin Province (No. 0047)
文摘A new one-dimensional copper coordination polymer chain has been prepared and fully characterized by single-crystal X-ray diffraction, elemental analyses and IR spectroscopy. The compound { [Cu2(C2O4)2(inta)4](inta)}n 1 crystallizes in the triclinic system, space group P1, with a = 8.4722(5), b = 10.9825(6), c = 11.6128(6)A, α= 104.8050(10),β = 102.5740(10), γ= 109.6890(10)°, V= 927.18(9) A3, Mr = 929.79, Z = 1, Dc = 1.665 g/cm^3, F(000) = 475, μ = 1.231 mm^-1, R = 0.0453 and wR = 0.1185 for 3290 observed reflections (Ⅰ 〉 2σ(Ⅰ)). Of the compound, the Cu center is octahedrally coordinated with oxalate acting as a tetra-dentate ligand coordinated to the copper atom and each inta serving as a terminal ligand by employing only one N-donor to coordinate with the Cu center. An infinite {Cu2(C2O4)2}∞ chain is formed along the c axis. Furthermore, the 1D chains are held together via extensive hydrogen-bonding interactions to generate a three-dimensional network with 1D channels (ca. 5.491A×11.507A) where inta molecules are filled.
基金Supported by the Science and Technology Development Projects of Jilin Province(No.20150101007JC)
文摘A new one-dimensional Mg(Ⅱ) coordination polymer, [Mg(L)(phen)(H2O)](1), has been hydrothermally synthesized by using 3,5-dinitro-salicylic acid(H2L) and 1,10-phenanthroline(phen). It crystallizes in monoclinic, space group C2/c with a = 33.038(7), b = 6.6481(13), c = 22.750(5) A, β = 126.99(3)°, V = 3991.1(14) A3, Z = 8, C19H12 MgN4O8, Mr = 448.64, Dc = 1.493 g/cm3, F(000) = 1840, μ(Mo Ka) = 0.146 mm-1, R = 0.0559 and w R = 0.0975. In 1, each L anion bridges two Mg(Ⅱ) atoms to give one-dimensional zigzag chains with the Mg…Mg separation of 5.34 ?, which are extended by π-π stacking interactions between 1,10-phenanthroline ligands into a two-dimensional supramolecular layer. Moreover, the O–H…O hydrogen-bonding interactions further stabilize the layer structure of 1. The luminescent property was also studied for 1 in solid state at room temperature. In addition, natural bond orbital(NBO) analysis was performed by the B3LYP/LANL2 DZ method in Gaussian 09 Program. The calculation results show obvious covalent interaction between the coordinated atoms and Mg(Ⅱ) ion.
基金Supported by the Program for Science&Technology Innovation Talents in Universities of Henan Province(No.14HASTIT017)the Program for Innovative Research Team(in Science and Technology)in University of Henan Province(No.14IRTSTHN008)+1 种基金the Foundation of Education Committee of Henan Province(No.142300410301)the National Natural Science Foundation of China(No.21571093)
文摘Two new coordination polymers,named {[Co3(pfca)6(phen)2]·2H2O}n(1) and[Cu(pfca)2(4,4'-bpy)(H2O)]n(2)(Hpfca = 4-fluorocinnamic acid and 4,4-bpy = 4,4-bipyridine),were hydrothermally synthesized and characterized by elemental analysis,IR spectroscopy,thermogravimetric analysis(TGA),and single-crystal X-ray diffraction.Complex 1 crystallizes in the triclinic crystal system,space group P1 with a = 10.939(3),b = 12.430(4),c = 13.815(4) A,α=78.436(3),β= 70.261(3),γ= 80.268(3)°,V= 1721.8(9) A^3,Dc = 1.508 g/cm^3,Mr= 1564.06,Z = 1,F(000) = 799,μ= 0.802 mm^(-1),the final R = 0.0432 and wR = 0.1015 for 13250 observed reflections with I 2σ(I).Complex 2 is of monoclinic system,space group P2/lc with a =15.4985(14),b = 15.8424(14),c = 10.9528(10) A,β= 107.1600(10)°,V= 2569.6(4) A^3,Dc = 1.468g/cm^3,Mr = 568.02,Z = 4,F(000) = 1164,μ= 0.906 mm^(-1),the final R = 0.0371 and wR = 0.0842 for 18183 observed reflections with I〉 2σ(I).Complex 1 features linear Co(Ⅱ)-trinuclear units,which are assembled into a final 3D supramolecular structure through π…π stacking interactions and F-H weak interactions.Complex 2 consists of 1D polymeric Cu(Ⅱ)-chains that are further cohered together by extensive H-bonds.
基金Supported by the Natural Science Foundation of Hunan Province(2019JJ60021)the Scientific Research Found of Hunan Provincial Education Department of China(17A049)Industry and Research Key Project of Hengyang City(2018k KJ016,2017KJ155,2017KJ193)
文摘A new copper coordination polymer[Cu2I(C7H5N4)2]n(1)with the 3-(pyridin-2-yl)-1,2,4-triazole(Hpt)and copper iodide was synthesized.It crystallizes in the triclinic space group P1 with a=8.6380(9),b=9.2434(9),c=11.8588(12)A,α=99.5890(10)o,β=109.0990(10)o,γ=105.2800(10)o,V=829.25(15)A^3,Dc=2.180 g/cm3,Z=2,F(000)=522,GOOF=1.046,the final R=0.0245 and wR=0.0598.The crystal structure shows that two copper ions are bridged by twoμ2-η1:η0-3-(pyridin-2-yl)-1,2,4-triazole anions and two iodide ions.The coordination environments of the Cu ion are Cu(1)N5 and Cu(2)N2I2,giving distorted square pyramidal geometry and trigon pyramid geometry.The magnetic and fluorescent properties of 1 were studied.
基金Supported by the National Natural Science Foundation of China(No.21607051)
文摘A new Cd(Ⅱ) coordination polymer, [Cd(L)2(H2O)]n(1), has been hydrothermally synthesized by using 1-(1 H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)naphthalen-2-ol(HL),(3-(4-(carboxymethoxy)phenyl)acrylic acid and Cd(NO3)·4 H2O. It crystallizes in monoclinic, space group P21/c with a = 19.41(2), b = 11.078(12), c = 20.09(2)A, β = 116.824(17)°, V = 3855(7)A^3, Z = 4, C46H28CdN8O3, Mr = 853.17, Dc = 1.470 g/cm^3, F(000) = 1728, μ(Mo Ka) = 0.621 mm^-1, R = 0.0338 and wR = 0.0890. 1 shows a one-dimensional(1D) zigzag chain structure. The neighboring chains are extended into a two-dimensional(2D) layer structure by π-π interactions between adjacent L ligands. In addition, Natural Bond Orbital(NBO) analysis was performed by the B3LYP/LANL2DZ method in Gaussian 09 Program. The calculation results show the obvious covalent interaction between the coordinated atoms and Cd(Ⅱ) ion.
基金Supported by the National Natural Science Foundation of China(No.51474086)
文摘A new Cu(Ⅰ) coordination polymer(CP) formulated as [Cu2(L)(CN)2]n(1, L =1,1′-bis(5,6-dimethylbenzimidazole)methane) was synthesized, in which the cyanide anions were generated in situ by the cleavage of C–C bond of acetonitrile under hydrothermal conditions. CP 1 was characterized by elemental analysis, IR spectroscopy and single-crystal X-ray diffraction. It crystallizes in the orthorhombic system, Pccn space group, with a = 10.314(3), b = 20.966(7), c =9.432(3)?, V = 2039.5(11)?3, Z = 4, C21 H20 Cu2 N6, Mr = 483.51, Dc = 1.575 g×cm^-3,μ= 2.105 mm-1 and F(000)= 984, the final R = 0.0608 and wR = 0.1942 for 1226 observed reflections with Ⅰ> 2s(Ⅰ)for the CP 1. The CP 1 possesses a 2D {63} layer structure which is composed of Cu(Ⅰ) centers bridged by L and CN– ligands. The thermal stability and luminescence properties of CP 1 are discussed in detail. The complex also displays a remarkable activity for the degradation of methyl orange by hydrogen peroxide in a Fenton-like process.
基金Supported by Natural Science Foundation of Liaoning Province(No20061073)Education Committee Foundation of Liao-ning Province(No2004F023)
文摘Hydrothermal treatment of MCl2 ( M = Co or Cu ) , NH4 VO3, and 1,10-phenanthroline-5,6-dione (pdon) resulted in the formation of a duplex coordination polymer [ Co ( bpdc ) ( H2O ) 3 ] · H2O ( bpdc = 2,2'-bipyridine-3,3'-dicarboxylate) and a chain-like coordination polymer [ Cu (bpy) V2O6 ] ( bpy = 2,2'-bipyridine ). X-ray single-crystal structural analysis shows that under hydrothermal conditions and in the presence of different transition metals, the organic reagent pdon was transformed in situ into bpdc and bpy, respectively. Mechanism of the in situ ligand synthesis reaction has been discussed.
基金supported by the Natural Scientific Research Foundation of Shaanxi Provincial Education Office of China (No. 09JK826,09JK815,08JZ82 and 08JK490)the Natural Scientific Research Foundation of Yan’an City Technology Division of China (No. 2009kg-01 and 2009ks-24)
文摘A novel coordination polymer of Cu II with flexible ligands,namely,[Cu 3 (mal) 2 (di2-pyridlyktone) 2 ] (1,H 2 mal=maleic acid),was synthesized and characterized by single-crystal X-ray diffraction,thermogravimetric analyses,elemental analysis and IR spectroscopy.The structure indicates that the complex crystallizes in monoclinic,space group P2 1 /c with a=10.268(2),b=17.737(3),c=8.038(1),β=98.275(2)°,V=1448.6(4) 3,Z=2,D c=1.883 Mg·m-3,μ=2.260 mm-1,F(000)=826,and the final R=0.0321 and wR=0.0820.In 1,three Cu II centers (Cu(1),Cu(2),Cu(1A)) are bridged by two uncommon μ 3-bridging H 2 mal ligands,furnishing a centrosymmetric trimetallic unit.Via further Cu-O COO coordination interactions,extention of these trimetallic units in two directions gives rise to an infinite corrugated 2D layer.In addition,thermal stability and electrochemistry of 1 were studied.
基金the State Key Basic Research and Development Plan of China (001CB108906)the Knowledge Innovation Program of the Chinese Academy of Sciences, the NSF (E0620005)+1 种基金the Major Special Foundation of Fujian Province (2005HZ1027, 2005HZ01-1)the Natural Science Foundation of Fujian Province (2006F3042)
文摘A new mellitate complex [Cu3(μ2-mellitate)(μ2-H2O)(H2O)2·H2O]n 1 has been synthesized by the reaction of mellitic acid and Cu(CH3COO)2·H2O in the presence of base. Crystallographic data for 1: C12H8O16Cu3, Mr = 598.80, orthorhombic, Pbcn, a = 8.4378(6), b = 10.0396(7), c = 17.6799(12)A, V = 1497.70(18)A^3, Z = 4, De = 2.656 g/cm^3, μ = 4.327 mm^-1, F(000) = 1180, R = 0.0431 and wR = 0.0964 for 1075 observed reflections (I 〉 2σ(I)). X-ray crystal structural analysis revealed that the mellitate anions behave as the bridging ligands and link eight copper atoms repeatedly to form a novel three-dimensional metal-organic coordination polymer with two different rhombic tunnels in the solid-state structure.
基金Supported by the National Natural Science foundation of China(21301005,21671004,51404006)Natural Science Foundation of Anhui Province(1408085QB31)the open fund of Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control(KFK201508)
文摘A complex {[Cu(tib)2(H2O)2]·(NO3)2}n(1) has been synthesized under N,N-dimethylacetamide(DMA) and water conditions. The structure of complex 1 was characterized by single-crystal X-ray crystallography. It crystallizes in monoclinic, space group P21/n with a = 10.6273(7), b = 11.4184(7), c = 13.4215(8) A, β = 108.290(2)°, V = 1546.38(17)A3, Z = 2, F(000) = 798, Dc = 1.667 g/cm3 and m = 0.786 mm-1) Complex 1 exhibits a 3D network due to the existence of O–H…O interaction between coordinated water and nitrate anions. Furthermore, complex 1 has a good catalytic activity for the reduction of 4-nitrophenol in Na BH4 solution.
基金supported by the Natural Science Foundation of Fujian Province (No.2010J01029)the Foundation of Education Committee of Fujian Province (No.JB11002)
文摘A new metal-organic coordination polymer [Zn(hfipbb)(e-urea)]n(1,H2hfipbb = 4,4'-(hexafluoroisopropylidene)bis(benzoic acid),e-urea = ethylene urea) has been urothermally synthesized and characterized by elemental analysis and single-crystal X-ray diffraction.The title complex crystallizes in monoclinic,space group P21/c with a = 13.302(4),b = 10.981(3),c = 13.804(4) ,β = 93.587(5)°,V = 2012.3(10) 3,C20H14N2O5F6Zn,Mr = 541.72,Z = 4,Dc = 0.447 g/cm3, = 0.328 mm-1,F(000) = 272,R = 0.0340 and wR = 0.1107 for 4528 observed reflections(I 〉2σ(I)).In the structure of compound 1,two Zn(Ⅱ) ions are bridged by two carboxylate groups from two hfipbb ligands to form a dinuclear unit,and each dinuclear Zn(Ⅱ) unit is linked with its two adjacent dinuclear units through four hfipbb ligands into an infinite one-dimensional double-chain.The interesting structural feature of compound 1 is that the one-D double-chains are self-interconnected into a three-D supramolecular structure through hydrogen bonds between the coordinated e-urea molecules and carboxylate oxygen atoms(N1 and O2,N2 and O4).
基金supported by Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources(Guangxi Normal University),Ministry of Education of China(No.CMEMR2011-13)the Scientific research and technological development project of Guilin(No.20110330)
文摘A new complex [Cu(L)(1,10-phen)]n (1, L = N-3-pyridine sulfonyl amino acid) has been synthesized and characterized by IR, elemental analysis and X-ray diffraction analysis, and its crystal belongs to monoclinic, space group P2Jc with a = 11.481 (2), b = 1 8.094(4), c = 8.5198(17) ]°, β= 102.26(3)°, V = 1729.5(6) ,/k3, Z = 4, Dc = 1.759 g/cm3, F(000) = 932, p = 1.422 mm-1, R = 0.0368 and wR = 0.0893. In 1, the Cu(ll) ion adopts a slightly distorted five-coordinated square pyramidal geometry. The L2- ligand adopts O of the carboxyl bridging adjacent Cu(Ⅱ)units to form an infinite chain structure along the c axis. Also, π-π stacking interactions between the adjacent chains expanded the 1-D structures into a 3-D supramolecular structure.
基金supported by the National Natural Science Foundation of China(Nos.21671119,21301106 and 21673127)
文摘Under hydrothermal conditions, the reactions of NiII/CuII ions with 3-(6-aminpyri- dinium-3-yl) benzoate (HL) afford two compounds [NiL2]n (1) and [CuL2(H2O)]n (2). On the basis of X-ray diffraction analysis of the two compounds, the results show that compound 1 features one-dimensional (1D) double-strand coordination arrays, while 2 presents the 63-hcb layers. Both compounds are further constructed into a 3D supramolecular structure with the aid of weak secondary interactions. Thermal stabilities and magnetic properties of compounds 1 and 2 were also investigated.
基金supported by Education Chamber of Henan Province(No.15A150068)
文摘A chiral supramolecular coordination polymer, [Co(HL)·(DMF)]n(1), with helical chains from a flexible ligand 5-(imidazol-1-ylmethyl)isophthalic acid(H2L) has been obtained under hydrothermal conditions and characterized by elemental analysis, powder X-ray diffraction(PXRD), IR, Uv/vis spectra, thermal gravimetric analyses(TGA) and also by single-crystal X-ray diffraction. It crystallizes in hexagonal, space group P6522 with a = 8.8109(3), b = 8.8109(3), c = 71.771(3) , γ = 120°, V = 4825.3(3) -3, Z = 6, Mr = 695.55, Dc = 1.436 g/cm-3, Rint = 0.0684, F(000) = 2166, the final R = 0.0923 and w R = 0.2697 for 3056 observed reflections(I 2σ(I)). The title coordination polymer 1 shows a chiral layered structure based on right-handed helix chains. Such layers are associated together through hydrogen-bonding interactions to form a 3D supramolecular framework.
基金supported by the Project for Innovation Team of Liaoning Province (No. 2007T052)Liaoning Provincial Key Laboratory (No. 2008S104)Startup Project of Doctor of Liaoning University
文摘The title compound [Cu(HSSA)(py)3H2O]n (H3SSA = 5-sulfosalicylic acid, py = pyridine) I has been synthesized and structurally determined by single-crystal X-ray diffraction. I was further characterized by elemental analyses, thermogravimetric analyses, IR and UV-visible spectroscopy. The crystal belongs to the monoclinic system, space group P21/c with a = 9.4564(10), b = 18.2679(19), c = 15.7284(12) A,β= 126.045(4)°, V= 2196.9(4)A^3, Z= 4, Dc = 1.618 g/cm^3, Mr = 535.02,μ = 1.141 mm^-1, F(000) = 1100, 2(MoKα) = 0.71073 A, the final R = 0.0429 and wR = 0.1044 for all observed reflections. In the structure, every two Cu(II) atoms are bridged by a bivalent 5-sulfosalicylic anion to form a 1D chain-like coordination polymer. Lattice waters between chains link them to form 2D layers which are further linked by C-H…O hydrogen bonds to form a three-dimensional supramolecular network.