A new supramolecular compound, { [2-(2-pyridyl)benzimidazoleH2]2+.[SBC15]2-}2, was synthesized by the hydrothermal reaction of o-diaminobenzene, 2-pyridinecarboxylie acid and SbCl3 in 1:1 HC1 solution, and charact...A new supramolecular compound, { [2-(2-pyridyl)benzimidazoleH2]2+.[SBC15]2-}2, was synthesized by the hydrothermal reaction of o-diaminobenzene, 2-pyridinecarboxylie acid and SbCl3 in 1:1 HC1 solution, and characterized by chemical analysis, elemental analysis, IR spectra, thermogravimetfic analysis and fluorescence spectra. The crystal structure was deter- mined by X-ray single-crystal diffraction. The crystal belongs to the monoclinic system, space group P211c, with a = 16.0397(13), b = 14.3189(12), c = 15.6370(13) A, β = 105.8980(10)°, V = 3454.0(5) A3, Z = 4, C24H22Cl10N6Sb2, Mr = 992.48, Dc = 1.909 g/cm3,/z = 2.366 mm-1, S = 1.010, F(000) = 1920, R = 0.0254 and wR = 0.0555. The coordination anion, [SbCl5]2- which is a distorted tetragonal pyramid, is composed by coordinating action with Sb3+ ion and five adjacent chloride ions. Every four coordination anions of [SbCl5]2- form a biquaternion ring structure through the secondary bonding of Sb...Cl. Moreover, the compound adopts a three-dimensional network supramolecular structure because of the hydrogen bonds and π-π stacking between the rings and the 2-(2-pyridyl)benzimidazole divalent cations. The title compound also shows good fluorescent behaviors.展开更多
A Bi(Ⅲ) contained heteropolymate compound Na3H2[Ce3(H2O)18Bi2W22O76] 23H2O 1 has been synthesized. It crystallizes in the triclinic system, space group P1 with a = 14.370(3), b = 17.113(3), c = 24.764(5) , = 74.33(3...A Bi(Ⅲ) contained heteropolymate compound Na3H2[Ce3(H2O)18Bi2W22O76] 23H2O 1 has been synthesized. It crystallizes in the triclinic system, space group P1 with a = 14.370(3), b = 17.113(3), c = 24.764(5) , = 74.33(3), = 77.20(3), ?= 65.29(3), V = 5285.3(18) 3, Z = 2, Mr = 6908.66, Dc = 4.341 g/cm3, F(000) = 6042, m(MoKa) = 28.543 mm-1, R = 0.0604 and wR = 0.1659 for 15788 reflections with I > 2(I). The structure analysis revealed that in the anionic framework of the title compound the [Bi2W22O76]14- anions are connected by Ce3+ and Na+ cations into a three dimensional network.展开更多
The title compound {[(C6H5CH2)2Sn]2(O)(Cl2)}2 has been synthesized by the reaction of bisbenzyltin dichloride with NaOH dilute solution, and its structure was determined by X-ray diffraction. The crystal belongs...The title compound {[(C6H5CH2)2Sn]2(O)(Cl2)}2 has been synthesized by the reaction of bisbenzyltin dichloride with NaOH dilute solution, and its structure was determined by X-ray diffraction. The crystal belongs to monoclinic, space group C2/c, with a = 2.5081(17), b = 1.0089(7), c = 2.0909(14) nm, β = 94.267(8)°, V= 5.276(6) nm^3, Z = 4, De= 1.734 g/cm^3,μ(MoKa) = 21.55 cm^-1, F(000) = 2704, R = 0.0398 and Rw = 0.1024. According to structural analysis, the tin atom adopts a distorted five-coordinate trigonal bipyramidal geometry, and the ladder-like structure is shaped by one planar four-membered Sn2O2 ring together with two planar four-membered Sn2OCl rings.展开更多
Two novel spiro compounds,3-benzylidene-1,5-dioxaspiro[5.5]undecane-2,4-dione 1 and 3-(2-fluorobenzylidene)-1,5-dioxaspiro[5.5]undecane-2,4-dione 2,have been synthesized and characterized by X-ray single-crystal dif...Two novel spiro compounds,3-benzylidene-1,5-dioxaspiro[5.5]undecane-2,4-dione 1 and 3-(2-fluorobenzylidene)-1,5-dioxaspiro[5.5]undecane-2,4-dione 2,have been synthesized and characterized by X-ray single-crystal diffraction,IR and elemental analysis.Compound 1 belongs to the monoclinic system,space group P21/n with a=12.326(3),b=5.6420(11),c=20.089(4),β= 101.79(3)o,C16H16O4,Mr= 272.29,V=1367.7(5)3,Z=4,Dc=1.322g/cm3,F(000)=576,μ(MoKa)=0.095 mm-1,the final R=0.0420 and wR=0.1159.Compound 2 is of monoclinic system,space group P21/n with a=12.283(3),b=5.6367(11),c=20.055(4),β=102.00(3)o,C16H15FO4,Mr=290.28,V=1358.2(5)3,Z=4,Dc=1.420 g/cm3,F(000)=608,μ(MoKa)=0.110 mm-1,the final R=0.0353 and wR=0.0860.展开更多
The mixed ligand coordination compound of copper with norfloxacin (NFLX) and 1, 10-phen has been synthesized and characterized by means of X-ray single crystal diffraction. The structure features of the coordination ...The mixed ligand coordination compound of copper with norfloxacin (NFLX) and 1, 10-phen has been synthesized and characterized by means of X-ray single crystal diffraction. The structure features of the coordination compound are described. Antibacterial activities of the coordination compound have been tested against different microorganisms. The antitumor activities of the coordination compound on leukemia HL-60 cell line and liver cancer BEL-7402 cell line have been measured, respectively. The results indicated that the coordination compound has strong inhibitory effect on HL-60 and BEL-7402 cell lines.展开更多
The title compounds 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-carboxylic acid(C11H9Cl N2O2, HL)(1) and [Cu(L)2(H2O)](2) were prepared and structurally characterized by elemental analysis, IR and single-crysta...The title compounds 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-carboxylic acid(C11H9Cl N2O2, HL)(1) and [Cu(L)2(H2O)](2) were prepared and structurally characterized by elemental analysis, IR and single-crystal X-ray diffraction. Compound 1(C11H9Cl N2O2) crystallizes in the monoclinic system, space group P21/n with a = 7.249(3), b = 20.515(10), c = 7.249(3),β= 96.30°, V = 1071.6(9) ?3, Z = 4, Mr = 236.65, Dc = 1.467 g/cm3, F(000) = 488, GOOF = 1.029, μ= 0.341 mm-1, the final R = 0.0736 and w R = 0.1966 for 1500 observed reflections with I 〉 2σ(I). Compound 2(C22H18Cl2Cu N4O5) crystallizes in the monoclinic system, space group P21/c with a = 7.2931(6), b = 24.548(2), c = 13.2726(11), β= 99.4040(10)°, V = 2344.2(3) ?3, Z = 4, Mr = 552.84, Dc = 1.566 g/cm3, F(000) = 1124, GOOF = 1.050, μ= 1.201 mm-1, the final R = 0.0376 and w R = 0.1000 for 3626 observed reflections with I 〉 2σ(I). 1 and 2 are connected through hydrogen bonding interactions to generate 2D and 3D supramolecular structures, respectively. Moreover, the preliminary antibacterial activities of 1 and 2 against the gram positive bacteria(S. aureus, C. albicans and B. subtilis) and gram negative bacteria(E. coli and P. aeruginosa) have been tested by using the microdilution method, and the results indicate that 2 is more active than 1 against the tested bacteria.展开更多
A dinuclear Tb(Ⅲ) compound, Tb_2(μ_2-anthc)_4(anthc)_2(1,10-phen)_2(1, Hanthc = 9-anthracenecarboxylic acid and 1,10-phen = 1,10-phenanthroline), was synthesized under solvothermal condition and structural...A dinuclear Tb(Ⅲ) compound, Tb_2(μ_2-anthc)_4(anthc)_2(1,10-phen)_2(1, Hanthc = 9-anthracenecarboxylic acid and 1,10-phen = 1,10-phenanthroline), was synthesized under solvothermal condition and structurally characterized by single-crystal X-ray diffraction. Compound 1 crystallizes in the triclinic system, space group P1, with a = 12.5061(12), b = 13.3168(10), c = 15.0079(12) ?, α = 110.620(7), β = 102.941(7), γ = 107.036(7)o, V = 2081.8(3) ?~3, Z = 1, C_(114)H_(70)N_4O_(12)Tb_2, M_r = 2005.58, D_c = 1.600 g/cm^3, μ = 1.759 mm^(-1), F(000) = 1008, the final R = 0.0294 and w R = 0.0608 for 8900 observed reflections with I 〉 2s(I). In compound 1, two Tb(Ⅲ) ions are linked by four carboxylate groups of the bridging anthc– ligands to give a dinuclear Tb_2(μ_2-anthc)_4 unit wherein each Tb(III) ion is further capped by a terminal anthc– ligand and a 1,10-phen ligand in a chelating fashion. Detailed direct-current and alternating-current susceptibility measurements showed no slow magnetism relaxation phenomenon was observed for 1.展开更多
A new luminescent compound, Zn(8-aminoql)2(SCN)2 (1, 8-aminoql = 8-amino quinoline), has been synthesized and its structure was characterized by IR, elemental analysis and X-ray single-crystal diffraction. Compo...A new luminescent compound, Zn(8-aminoql)2(SCN)2 (1, 8-aminoql = 8-amino quinoline), has been synthesized and its structure was characterized by IR, elemental analysis and X-ray single-crystal diffraction. Compound 1 belongs to the orthorhombic system, space group Pbca with a = 8.503(2), b = 14.427(4), c = 31.922(8)A, V= 3916.0(18) A3, Z = 8, C20H16N6S2Zn, Mr = 469.88, Dc = 1.594 Mg/m3, μ = 1.488 mm-1, F(000) = 1920, T = 296(2) K, the final R = 0.0293 and wR = 0.0645 for all 2763 observed reflections (1 〉 2a(/)). Compound 1 displays a 3D supramolecular architecture formed by N-H--S hydrogen bonds and π...π aromatic packing interactions. Photoluminescence studies reveal that it displays obvious fluorescent emission band (λex = 320 nm) at 533 nm in the solid state at room temperature. The emission bands possess a broad asymmetric feature, which can be assigned to ligand-to-ligand charge transfer transitions based on DFT calculations.展开更多
The mixed-quadriligand bismuth complex [Bi(S2CNEt2)2(NO3)]?[1,10-Phen] has been synthesized, and its crystal structure was determined by X-ray single-crystal diffraction. The crystal belongs to monoclinic, space gro...The mixed-quadriligand bismuth complex [Bi(S2CNEt2)2(NO3)]?[1,10-Phen] has been synthesized, and its crystal structure was determined by X-ray single-crystal diffraction. The crystal belongs to monoclinic, space group P21/n with a = 10.074(17), b = 15.05(2), c = 18.99(3) ?, β = 98.85(3)o, V = 2845(8) ?3, Z = 4, F(000) = 1464, Dc = 1.746 g/cm3, μ = 6.523 mm-1, R = 0.0333 and wR = 0.0703. In this complex, the bismuth atom is eight-coordinated in a capped distorted pentagonal bipyramidal geometry.展开更多
Two metal-dithiolene compounds with a formula of[4-ClBz-l-APy][Ni(dmit)2](1)and[4-NO2Bz-l-APy][Ni(dmit)2](2,4-ClBz-1-APy = 1-N-(4'-chlorobenzyl)pyridinium,4-NO2Bz-1-APy = l-N-(4'-nitrobenzyl)pyridinium,dm...Two metal-dithiolene compounds with a formula of[4-ClBz-l-APy][Ni(dmit)2](1)and[4-NO2Bz-l-APy][Ni(dmit)2](2,4-ClBz-1-APy = 1-N-(4'-chlorobenzyl)pyridinium,4-NO2Bz-1-APy = l-N-(4'-nitrobenzyl)pyridinium,dmit^(2-)= 1,3-dithiole-2-thione-4,5-dithiolate) were synthesized and characterized.Two compounds crystallize in triclinic space group P1 and P1,respectively,but with different cell parameters and packing structures.The[Ni(dmit)2]^- anions and cations of 1 form mixed column stacks along the a axis and alternately layered alignments in the crystal of 2,which are parallel to the crystallographic(110) plane.Two compounds show a similar magnetic behavior,the magnetic exchange natures are mainly antiferromagnetic,and the magnetic susceptibility data can be fitted to the simple Curie-Weiss law.For 1 and 2,the fitted Curie constants are much less than the spin-only value expected for an S =1/2 system,and the fitted Weiss constants marking magnetic interaction are also very smaller.This fact implies that the weak CurrieWeiss-type paramagnetism is not the intrinsic characteristics of two compounds.展开更多
A three-dimensional(3D) coordination polymer,[Cd(SC)(DPPD)]_n(1,H_2SC = succinic acid and DPPD = 3,6-di(4-pyridyl)pyridazine),has been synthesized by the solvothermal reaction of Cd(NO_3)_2·4H_2O with...A three-dimensional(3D) coordination polymer,[Cd(SC)(DPPD)]_n(1,H_2SC = succinic acid and DPPD = 3,6-di(4-pyridyl)pyridazine),has been synthesized by the solvothermal reaction of Cd(NO_3)_2·4H_2O with H_2 SC and DPPD at 120 ℃ in DMF solvent. Compound 1 crystallizes in the monoclinic system,space group P2_1/c,with a = 10.7993(4),b = 11.7705(3),c = 13.5336(6) A,V = 1678.89(11) A^3,Z = 4,C18H14N4O_4 Cd,M_r = 462.73,D_c = 1.831 g/cm^3,μ = 1.335 mm^(-1),F(000) = 920.0,the final R = 0.0500 and wR = 0.1567 for 3714 observed reflections with I 〉 2s(I). In compound 1,the Cd(Ⅱ) ions are linked by the SC^2– ligands to give a two-dimensional(2D) undulating sheet based on the centrosymmetric dinuclear Cd_2(COO)_2 units. The 2D sheets are further connected by the DPPD ligands to produce a 3D structure,which is a 6-connected(4^4·6·^10·8) topological network based on the dinuclear Cd_2(COO)_2 node. Compound 1 exhibits a photoluminescent emission with a maximum at 540 nm upon excitation at 460 nm.展开更多
A novel supramolecular compound,{[2-(2-pyridyl)benzimidazoleH2]2·[BiCl6]·Cl},was synthesized by the hydrothermal reaction of o-phenylenediamine and α-pyridinecarboxylic acid with BiCl3 in 6.0 mol·L-1...A novel supramolecular compound,{[2-(2-pyridyl)benzimidazoleH2]2·[BiCl6]·Cl},was synthesized by the hydrothermal reaction of o-phenylenediamine and α-pyridinecarboxylic acid with BiCl3 in 6.0 mol·L-1 HCl solution,and characterized by elemental analysis,IR,X-ray single-crystal diffraction and photoluminescence spectroscopy.The crystal (C24H22N6Cl7Bi,Mr= 851.61) belongs to the triclinic system,space group P1 with a =7.2887(18),b =9.548(2),c= 12.469(3),α=85.306(4),β=82.814(4),γ=71.349(4)°,Z=1,V=814.9(3)3,Dc=1.735 g/cm3,μ(MoKα)=6.007 mm-1,F(000)=410,R=0.0307 and wR=0.0787.The bismuth ion and six chlorine ions construct a distorted octahedral configuration.The three-dimensional supramolecular network is built from electrostatic attractions,hydrogen bonds and π-π interaction between the BiCl6 anion,Cl anion and [2-(2-pyridyl)benzimidazoleH2] cation.The photoluminescence spectroscopy study shows that the title compound has a blue fluorescent emission at 450 nm in the solid state.展开更多
A dinuclear dysprosium(III) compound,[Dy2(μ2-OH)2(QLC)4(1,10-phen)2]·4H2O(1)(QLC-= 2-quinolinecarboxylate and 1,10-phen = 1,10-phenanthroline),was synthesized and structurally and magnetically charac...A dinuclear dysprosium(III) compound,[Dy2(μ2-OH)2(QLC)4(1,10-phen)2]·4H2O(1)(QLC-= 2-quinolinecarboxylate and 1,10-phen = 1,10-phenanthroline),was synthesized and structurally and magnetically characterized.Compound 1 crystallizes in triclinic system,space group P1 with a = 10.9439(3),b = 11.2823(3),c = 12.2323(4) ?,α = 107.446(3),β = 91.700(3),γ = 91.511(2)°,V = 1439.25(8) A3,Z = 1,C(64)H(50)N8O(14)Dy2,Mr = 1480.12,Dc = 1.708 g/cm3,μ = 2.653 mm-1 and F(000) = 734.The final R = 0.0366 and w R = 0.0736 for 5816 observed reflections with I 〉 2σ(I).Compound 1 contains the mononuclear [Dy(QLC)2(1,10-phen)] subunit formed from one 1,10-phen and two QLC-ligands chelating Dy(III) ion.Two mononuclear [Dy(QLC)2(1,10-phen)] subunits are bridged by a pair of μ2-OH groups to give a centrosymmetric dinuclear [Dy2(μ2-OH)2(QLC)4(1,10-phen)2] with each Dy(III) ion being eight-coordinated.Detailed susceptibility measurements revealed that compound 1 does not show slow magnetic relaxation under zero direct-current field but exhibits field-induced slow magnetic relaxation under 2 kOe applied field.展开更多
A new cobalt(II) compound, {(Me2NH2)4[Co(SIP)2]·2(DMF)·3(H2O)}n(1, H3 SIP =5-sulfoisophthalic acid), has been synthesized under solvothermal condition and structurally characterized by single-cry...A new cobalt(II) compound, {(Me2NH2)4[Co(SIP)2]·2(DMF)·3(H2O)}n(1, H3 SIP =5-sulfoisophthalic acid), has been synthesized under solvothermal condition and structurally characterized by single-crystal X-ray diffraction. Compound 1 crystallizes in the tetragonal system,space group P 4 21 m, with a = 14.3080(7), b = 14.3080(7), c = 12.1837(9) ?, V = 2494.2(3) ?~3, Z =2, CHNOSCo, Mr = 929.87, Dc = 1.238 g/cm, μ = 0.496 mm, F(000) = 982, flack parameter of 0.007(9), the final R = 0.0767 and wR = 0.2110 for 2391 observed reflections with I >2σ(I). The tetrahedral Co(II) ions are linked by carboxylate groups of the 5-sulfoisophthalate ligands to form an anionic two-dimensional(2D) layer displaying a(4,4) square network, which was charge-balanced by the [MeNH] + cations occupying the spaces between the 2D layers. Magnetic properties of 1 have been investigated in detail using direct-current and alternating-current susceptibility measurements.展开更多
Two new compounds,1([Cu(IDB_)2]Cl_2·2CH_3CH_2OH·2H_2O(IDB = N,N-di(2-benzimidazolylmethyl)imine]) and 2([Cu(EDTB)]·2[C_6H_4(OH)COO]·6H_2O(EDTB = N,N,N',N'-tetrakis-[(2-benzimidazoly...Two new compounds,1([Cu(IDB_)2]Cl_2·2CH_3CH_2OH·2H_2O(IDB = N,N-di(2-benzimidazolylmethyl)imine]) and 2([Cu(EDTB)]·2[C_6H_4(OH)COO]·6H_2O(EDTB = N,N,N',N'-tetrakis-[(2-benzimidazolyl)methyl]-1,2-ethanediamine]),have been synthesized and their crystal structures were determined by single-crystal X-ray diffraction. Crystal 1 belongs to the triclinic system,space group P1 with a = 9.565(2),b = 9.863(2),c = 10.252(3) ?,α = 81.915,β = 88.330,γ = 87.347°,V = 956.28(40) ?3,Z = 1,F(000) = 427,D_c = 1.419 g/cm3,Mr = 817.27 and μ(MoKα) = 0.764 mm^(-1). The final R indices(I 〉 2σ(I)): R = 0.0505,wR = 0.1417; R indices(all data): R = 0.0591,wR = 0.1525. Crystal 2 is of triclinic system,space group P1 with a = 11.487(3),b = 13.396(4),c = 17.977(5) ?,α = 73.899(5),β = 86.629(5),γ = 65.018(4)°,V = 2403.8(12) ?3,Z = 2,F(000) = 1072,D3c = 1.417 g/cm,Mr = 1025.54,μ(MoKα) = 0.528 mm^(-1). The final R indices(I 〉 2σ(I)): R = 0.0769,w R = 0.163 2; R indices(all data): R = 0.0769,wR = 0.1632. The two compounds exhibit mononuclear structures. The copper(Ⅱ) atom of crystal 1 is six-coordinated by four nitrogen atoms of benzimidazole groups and two amine nitrogen atoms from the ligand IDB to adopt a distorted octahedral coordination geometry. The copper(Ⅱ) atom of crystal 2 is six-coordinated by four nitrogen atoms of benzimidazole groups and two amine nitrogen atoms from the ligand EDTB to show a distorted octahedral coordination geometry. Particularly,the two compounds exhibit fluorescent properties at room temperature in ethanol.展开更多
A two-dimensional coordination polymer, [Pb(bmzbc)2]n(1)(Hbmzbc =4-benzimidazole-1-yl-benzoic acid), has been synthesized by the solvothermal reaction of Pb(NO3)2 with Hbmzbc at 120 ℃ in ethanol solvent. Comp...A two-dimensional coordination polymer, [Pb(bmzbc)2]n(1)(Hbmzbc =4-benzimidazole-1-yl-benzoic acid), has been synthesized by the solvothermal reaction of Pb(NO3)2 with Hbmzbc at 120 ℃ in ethanol solvent. Compound 1 has been characterized by single-crystal X-ray diffraction, powder X-ray diffraction, thermogravimetry analysis, and IR spectrum. Compound 1 crystallizes in the orthorhombic system, space group Pccn, with a = 12.5801(7), b = 20.0795(11), c = 9.1830(6) ?, V = 2319.6(2) A^3, Z = 4, C(28)H(18)N4O4Pb, Mr = 681.65, Dc = 1.952 g/cm^3, μ = 7.319 mm^-1, F(000) = 1312, the final R = 0.0336 and wR = 0.0965 for 1699 observed reflection with I 〉 2σ(I). In 1, the bmzbc^– ligands bridge the Pb(Ⅱ) ions to generate a 2-D sheet with(4, 4) topology. The complex exhibits turquoise photoluminescent emission with a maximum at 480 nm upon excitation at 300 nm.展开更多
A novel Dy^(3+) coordination compound,(H_2pipz)(H_3O)[Dy(pydc)_3]·11H_2O(1,pipz = piperazine and H_2pydc = pyridine-2,6-dicarboxylic acid),has been hydrothermally synthesized and characterized by X-ray...A novel Dy^(3+) coordination compound,(H_2pipz)(H_3O)[Dy(pydc)_3]·11H_2O(1,pipz = piperazine and H_2pydc = pyridine-2,6-dicarboxylic acid),has been hydrothermally synthesized and characterized by X-ray single-crystal diffraction,elemental analysis. It is interesting that the packing structure of compound 1 contains 22-core water clusters. Compound 1 is extended into a threedimensional supramolecular structure via O···H···O hydrogen bonding interactions. Furthermore,the luminescent property of compound 1 was also investigated.展开更多
A novel dimer of the bismuth(Ⅲ) complex with dithiotetrahydropyrrolocarbamate, [Bi(S_2CNC_4H_8)_2·(NO_3)]_2, was synthesized and the crystal structure was determined by X-ray single crystal diffraction. The crys...A novel dimer of the bismuth(Ⅲ) complex with dithiotetrahydropyrrolocarbamate, [Bi(S_2CNC_4H_8)_2·(NO_3)]_2, was synthesized and the crystal structure was determined by X-ray single crystal diffraction. The crystal belongs to a monoclinic system with space group P2_1/n, a=0.64718(13) nm, b=2.6738(6) nm, c=1.0423(2) nm, β=106.384(3)°, Z=4, V=1.730(3) nm^3, D_c=2.163 g/cm^3, μ=10.682 mm^(-1), F(000)=1072, R=0.0329, wR=0.0659. The structure shows a distorted pentagonal bipyramidal configuration with the seven-coordinated central Bi atom. In the crystal, the molecular packing in the unit cell reveals that the two adjacent molecules are symmetrically linked each other in the dimer by virtue of a couple of Bi-S interaction.展开更多
A new bismuth oxalate Na(C5NH6)[Bi(H2O)(C2O4)2]2·4H2O has been obtained under hydrothermal conditions and characterized by X-ray diffraction. It crystallizes in monoclinic, space group C2/m with a = 12.020...A new bismuth oxalate Na(C5NH6)[Bi(H2O)(C2O4)2]2·4H2O has been obtained under hydrothermal conditions and characterized by X-ray diffraction. It crystallizes in monoclinic, space group C2/m with a = 12.020(5), b = 11.190(8), c = 11.067(10)A, β= 121.78(2)°, NaBi2C13NH18O22, Mr= 981.24, V = 1265.4(16) A^3, Z = 2, Dc = 2.575 g/cm^3,μ(MoKcr) = 14.005 mm^-1, F(000) = 912, R = 0.0179 and wR = 0.0394. In the structure, the Bi(III) centers are interconnected by oxalate ligands to produce honeycomb-like layers, which are further pillared by bridging ligand oxalate molecules to form a 3-D open-framework structure. Furthermore, the title compound exhibits blue luminescence with the emission peaks located at 394nm in the solid state at room temperature, and thus it could be useful in the field of photoactive materials.展开更多
Reaction of benzyl chloride with η5-CH3COC5H4W(CO)2Na formed in situ from η6-CH3CO C6H4Na and W(CO)2 gives η6-CH3COC6H4W(CO)3CH2C5H5.The single crystal structure of the product was determined by X-ray diffraction m...Reaction of benzyl chloride with η5-CH3COC5H4W(CO)2Na formed in situ from η6-CH3CO C6H4Na and W(CO)2 gives η6-CH3COC6H4W(CO)3CH2C5H5.The single crystal structure of the product was determined by X-ray diffraction method. It crystallizes in the triclinlc space group P1 with unit cell parameters a= 10.199(5),b=12.116(7), c=14.207(6)A;a=69.47(5),β=72. 38(3),γ= 85.89(4);V= 1569. 9A3, Dc= 1.98 g/cm2; Z=4. Least-square refinement led to final R value of 0. 0539 and Rw value of 0. 0553, based on 3548 independent observed reflections.展开更多
基金Supported by the Natural Science Foundation of Henan Province (No. 0611023700)Natural Science Foundation of Education Department of Henan Province (No. 2006150019)
文摘A new supramolecular compound, { [2-(2-pyridyl)benzimidazoleH2]2+.[SBC15]2-}2, was synthesized by the hydrothermal reaction of o-diaminobenzene, 2-pyridinecarboxylie acid and SbCl3 in 1:1 HC1 solution, and characterized by chemical analysis, elemental analysis, IR spectra, thermogravimetfic analysis and fluorescence spectra. The crystal structure was deter- mined by X-ray single-crystal diffraction. The crystal belongs to the monoclinic system, space group P211c, with a = 16.0397(13), b = 14.3189(12), c = 15.6370(13) A, β = 105.8980(10)°, V = 3454.0(5) A3, Z = 4, C24H22Cl10N6Sb2, Mr = 992.48, Dc = 1.909 g/cm3,/z = 2.366 mm-1, S = 1.010, F(000) = 1920, R = 0.0254 and wR = 0.0555. The coordination anion, [SbCl5]2- which is a distorted tetragonal pyramid, is composed by coordinating action with Sb3+ ion and five adjacent chloride ions. Every four coordination anions of [SbCl5]2- form a biquaternion ring structure through the secondary bonding of Sb...Cl. Moreover, the compound adopts a three-dimensional network supramolecular structure because of the hydrogen bonds and π-π stacking between the rings and the 2-(2-pyridyl)benzimidazole divalent cations. The title compound also shows good fluorescent behaviors.
基金work was supported by the Natural Science Foundation of Fujian Province (E011013 and K02028) and State Key Laboratory of Structural Chemistry
文摘A Bi(Ⅲ) contained heteropolymate compound Na3H2[Ce3(H2O)18Bi2W22O76] 23H2O 1 has been synthesized. It crystallizes in the triclinic system, space group P1 with a = 14.370(3), b = 17.113(3), c = 24.764(5) , = 74.33(3), = 77.20(3), ?= 65.29(3), V = 5285.3(18) 3, Z = 2, Mr = 6908.66, Dc = 4.341 g/cm3, F(000) = 6042, m(MoKa) = 28.543 mm-1, R = 0.0604 and wR = 0.1659 for 15788 reflections with I > 2(I). The structure analysis revealed that in the anionic framework of the title compound the [Bi2W22O76]14- anions are connected by Ce3+ and Na+ cations into a three dimensional network.
基金Supported by the Science and Technology Fund of Hunan Province (2007FJ4140)the Key Fund of Education Committee of Hunan Province (06009)the Construct Program of the Key Discipline in Hunan Province
文摘The title compound {[(C6H5CH2)2Sn]2(O)(Cl2)}2 has been synthesized by the reaction of bisbenzyltin dichloride with NaOH dilute solution, and its structure was determined by X-ray diffraction. The crystal belongs to monoclinic, space group C2/c, with a = 2.5081(17), b = 1.0089(7), c = 2.0909(14) nm, β = 94.267(8)°, V= 5.276(6) nm^3, Z = 4, De= 1.734 g/cm^3,μ(MoKa) = 21.55 cm^-1, F(000) = 2704, R = 0.0398 and Rw = 0.1024. According to structural analysis, the tin atom adopts a distorted five-coordinate trigonal bipyramidal geometry, and the ladder-like structure is shaped by one planar four-membered Sn2O2 ring together with two planar four-membered Sn2OCl rings.
基金supported by the Natural Science Foundation of Shandong Province (No. Y2008B29)
文摘Two novel spiro compounds,3-benzylidene-1,5-dioxaspiro[5.5]undecane-2,4-dione 1 and 3-(2-fluorobenzylidene)-1,5-dioxaspiro[5.5]undecane-2,4-dione 2,have been synthesized and characterized by X-ray single-crystal diffraction,IR and elemental analysis.Compound 1 belongs to the monoclinic system,space group P21/n with a=12.326(3),b=5.6420(11),c=20.089(4),β= 101.79(3)o,C16H16O4,Mr= 272.29,V=1367.7(5)3,Z=4,Dc=1.322g/cm3,F(000)=576,μ(MoKa)=0.095 mm-1,the final R=0.0420 and wR=0.1159.Compound 2 is of monoclinic system,space group P21/n with a=12.283(3),b=5.6367(11),c=20.055(4),β=102.00(3)o,C16H15FO4,Mr=290.28,V=1358.2(5)3,Z=4,Dc=1.420 g/cm3,F(000)=608,μ(MoKa)=0.110 mm-1,the final R=0.0353 and wR=0.0860.
基金funded by the National Natural Science Foundation of China(No.50073019)
文摘The mixed ligand coordination compound of copper with norfloxacin (NFLX) and 1, 10-phen has been synthesized and characterized by means of X-ray single crystal diffraction. The structure features of the coordination compound are described. Antibacterial activities of the coordination compound have been tested against different microorganisms. The antitumor activities of the coordination compound on leukemia HL-60 cell line and liver cancer BEL-7402 cell line have been measured, respectively. The results indicated that the coordination compound has strong inhibitory effect on HL-60 and BEL-7402 cell lines.
基金Supported by the National Natural Science Foundation of China(No.20662007)the Bureau of Education of Jiangxi Province(No.GJJ09064)Jiangxi Science and Technology Support Program(20112BBF60009)
文摘The title compounds 5-chloro-3-methyl-1-phenyl-1H-pyrazole-4-carboxylic acid(C11H9Cl N2O2, HL)(1) and [Cu(L)2(H2O)](2) were prepared and structurally characterized by elemental analysis, IR and single-crystal X-ray diffraction. Compound 1(C11H9Cl N2O2) crystallizes in the monoclinic system, space group P21/n with a = 7.249(3), b = 20.515(10), c = 7.249(3),β= 96.30°, V = 1071.6(9) ?3, Z = 4, Mr = 236.65, Dc = 1.467 g/cm3, F(000) = 488, GOOF = 1.029, μ= 0.341 mm-1, the final R = 0.0736 and w R = 0.1966 for 1500 observed reflections with I 〉 2σ(I). Compound 2(C22H18Cl2Cu N4O5) crystallizes in the monoclinic system, space group P21/c with a = 7.2931(6), b = 24.548(2), c = 13.2726(11), β= 99.4040(10)°, V = 2344.2(3) ?3, Z = 4, Mr = 552.84, Dc = 1.566 g/cm3, F(000) = 1124, GOOF = 1.050, μ= 1.201 mm-1, the final R = 0.0376 and w R = 0.1000 for 3626 observed reflections with I 〉 2σ(I). 1 and 2 are connected through hydrogen bonding interactions to generate 2D and 3D supramolecular structures, respectively. Moreover, the preliminary antibacterial activities of 1 and 2 against the gram positive bacteria(S. aureus, C. albicans and B. subtilis) and gram negative bacteria(E. coli and P. aeruginosa) have been tested by using the microdilution method, and the results indicate that 2 is more active than 1 against the tested bacteria.
基金Supported by the National Natural Science Foundation of China(No.21361011 and 21101081)Science Founds of State Key Laboratory of Structural Chemistry(20130011)
文摘A dinuclear Tb(Ⅲ) compound, Tb_2(μ_2-anthc)_4(anthc)_2(1,10-phen)_2(1, Hanthc = 9-anthracenecarboxylic acid and 1,10-phen = 1,10-phenanthroline), was synthesized under solvothermal condition and structurally characterized by single-crystal X-ray diffraction. Compound 1 crystallizes in the triclinic system, space group P1, with a = 12.5061(12), b = 13.3168(10), c = 15.0079(12) ?, α = 110.620(7), β = 102.941(7), γ = 107.036(7)o, V = 2081.8(3) ?~3, Z = 1, C_(114)H_(70)N_4O_(12)Tb_2, M_r = 2005.58, D_c = 1.600 g/cm^3, μ = 1.759 mm^(-1), F(000) = 1008, the final R = 0.0294 and w R = 0.0608 for 8900 observed reflections with I 〉 2s(I). In compound 1, two Tb(Ⅲ) ions are linked by four carboxylate groups of the bridging anthc– ligands to give a dinuclear Tb_2(μ_2-anthc)_4 unit wherein each Tb(III) ion is further capped by a terminal anthc– ligand and a 1,10-phen ligand in a chelating fashion. Detailed direct-current and alternating-current susceptibility measurements showed no slow magnetism relaxation phenomenon was observed for 1.
基金supported by the National Natural Science Foundation of China(No.20971004)the Natural Science Foundation of Anhui Provincial Educational Commission(No.KJ2010A229,No.2011SQRL098)
文摘A new luminescent compound, Zn(8-aminoql)2(SCN)2 (1, 8-aminoql = 8-amino quinoline), has been synthesized and its structure was characterized by IR, elemental analysis and X-ray single-crystal diffraction. Compound 1 belongs to the orthorhombic system, space group Pbca with a = 8.503(2), b = 14.427(4), c = 31.922(8)A, V= 3916.0(18) A3, Z = 8, C20H16N6S2Zn, Mr = 469.88, Dc = 1.594 Mg/m3, μ = 1.488 mm-1, F(000) = 1920, T = 296(2) K, the final R = 0.0293 and wR = 0.0645 for all 2763 observed reflections (1 〉 2a(/)). Compound 1 displays a 3D supramolecular architecture formed by N-H--S hydrogen bonds and π...π aromatic packing interactions. Photoluminescence studies reveal that it displays obvious fluorescent emission band (λex = 320 nm) at 533 nm in the solid state at room temperature. The emission bands possess a broad asymmetric feature, which can be assigned to ligand-to-ligand charge transfer transitions based on DFT calculations.
基金This project was supported by the National Natural Science Foundation of China (No. 20271025) and Natural Science Foundation of Shandong Province (No. L2003B01)
文摘The mixed-quadriligand bismuth complex [Bi(S2CNEt2)2(NO3)]?[1,10-Phen] has been synthesized, and its crystal structure was determined by X-ray single-crystal diffraction. The crystal belongs to monoclinic, space group P21/n with a = 10.074(17), b = 15.05(2), c = 18.99(3) ?, β = 98.85(3)o, V = 2845(8) ?3, Z = 4, F(000) = 1464, Dc = 1.746 g/cm3, μ = 6.523 mm-1, R = 0.0333 and wR = 0.0703. In this complex, the bismuth atom is eight-coordinated in a capped distorted pentagonal bipyramidal geometry.
基金supported by the National Natural Science Foundation of ChinaNatural Science Foundation of High Learning Institutions of Anhui ProvinceScience Supported Foundation of Nanjing Xiaozhuang College(No.21201103,KJ2012ZD11 and 2014XZRC01)
文摘Two metal-dithiolene compounds with a formula of[4-ClBz-l-APy][Ni(dmit)2](1)and[4-NO2Bz-l-APy][Ni(dmit)2](2,4-ClBz-1-APy = 1-N-(4'-chlorobenzyl)pyridinium,4-NO2Bz-1-APy = l-N-(4'-nitrobenzyl)pyridinium,dmit^(2-)= 1,3-dithiole-2-thione-4,5-dithiolate) were synthesized and characterized.Two compounds crystallize in triclinic space group P1 and P1,respectively,but with different cell parameters and packing structures.The[Ni(dmit)2]^- anions and cations of 1 form mixed column stacks along the a axis and alternately layered alignments in the crystal of 2,which are parallel to the crystallographic(110) plane.Two compounds show a similar magnetic behavior,the magnetic exchange natures are mainly antiferromagnetic,and the magnetic susceptibility data can be fitted to the simple Curie-Weiss law.For 1 and 2,the fitted Curie constants are much less than the spin-only value expected for an S =1/2 system,and the fitted Weiss constants marking magnetic interaction are also very smaller.This fact implies that the weak CurrieWeiss-type paramagnetism is not the intrinsic characteristics of two compounds.
基金Supported by the National Natural Science Foundation of China(No.21361011 and 21101081)Science Founds of State key Laboratory of Structural Chemistry(20130011)
文摘A three-dimensional(3D) coordination polymer,[Cd(SC)(DPPD)]_n(1,H_2SC = succinic acid and DPPD = 3,6-di(4-pyridyl)pyridazine),has been synthesized by the solvothermal reaction of Cd(NO_3)_2·4H_2O with H_2 SC and DPPD at 120 ℃ in DMF solvent. Compound 1 crystallizes in the monoclinic system,space group P2_1/c,with a = 10.7993(4),b = 11.7705(3),c = 13.5336(6) A,V = 1678.89(11) A^3,Z = 4,C18H14N4O_4 Cd,M_r = 462.73,D_c = 1.831 g/cm^3,μ = 1.335 mm^(-1),F(000) = 920.0,the final R = 0.0500 and wR = 0.1567 for 3714 observed reflections with I 〉 2s(I). In compound 1,the Cd(Ⅱ) ions are linked by the SC^2– ligands to give a two-dimensional(2D) undulating sheet based on the centrosymmetric dinuclear Cd_2(COO)_2 units. The 2D sheets are further connected by the DPPD ligands to produce a 3D structure,which is a 6-connected(4^4·6·^10·8) topological network based on the dinuclear Cd_2(COO)_2 node. Compound 1 exhibits a photoluminescent emission with a maximum at 540 nm upon excitation at 460 nm.
基金Supported by the Natural Science Foundation of Henan Province (No. 0611023700)
文摘A novel supramolecular compound,{[2-(2-pyridyl)benzimidazoleH2]2·[BiCl6]·Cl},was synthesized by the hydrothermal reaction of o-phenylenediamine and α-pyridinecarboxylic acid with BiCl3 in 6.0 mol·L-1 HCl solution,and characterized by elemental analysis,IR,X-ray single-crystal diffraction and photoluminescence spectroscopy.The crystal (C24H22N6Cl7Bi,Mr= 851.61) belongs to the triclinic system,space group P1 with a =7.2887(18),b =9.548(2),c= 12.469(3),α=85.306(4),β=82.814(4),γ=71.349(4)°,Z=1,V=814.9(3)3,Dc=1.735 g/cm3,μ(MoKα)=6.007 mm-1,F(000)=410,R=0.0307 and wR=0.0787.The bismuth ion and six chlorine ions construct a distorted octahedral configuration.The three-dimensional supramolecular network is built from electrostatic attractions,hydrogen bonds and π-π interaction between the BiCl6 anion,Cl anion and [2-(2-pyridyl)benzimidazoleH2] cation.The photoluminescence spectroscopy study shows that the title compound has a blue fluorescent emission at 450 nm in the solid state.
基金Supported by the National Natural Science Foundation of China(No.21561015)
文摘A dinuclear dysprosium(III) compound,[Dy2(μ2-OH)2(QLC)4(1,10-phen)2]·4H2O(1)(QLC-= 2-quinolinecarboxylate and 1,10-phen = 1,10-phenanthroline),was synthesized and structurally and magnetically characterized.Compound 1 crystallizes in triclinic system,space group P1 with a = 10.9439(3),b = 11.2823(3),c = 12.2323(4) ?,α = 107.446(3),β = 91.700(3),γ = 91.511(2)°,V = 1439.25(8) A3,Z = 1,C(64)H(50)N8O(14)Dy2,Mr = 1480.12,Dc = 1.708 g/cm3,μ = 2.653 mm-1 and F(000) = 734.The final R = 0.0366 and w R = 0.0736 for 5816 observed reflections with I 〉 2σ(I).Compound 1 contains the mononuclear [Dy(QLC)2(1,10-phen)] subunit formed from one 1,10-phen and two QLC-ligands chelating Dy(III) ion.Two mononuclear [Dy(QLC)2(1,10-phen)] subunits are bridged by a pair of μ2-OH groups to give a centrosymmetric dinuclear [Dy2(μ2-OH)2(QLC)4(1,10-phen)2] with each Dy(III) ion being eight-coordinated.Detailed susceptibility measurements revealed that compound 1 does not show slow magnetic relaxation under zero direct-current field but exhibits field-induced slow magnetic relaxation under 2 kOe applied field.
基金Supported by the NNSFC(21361011 and 21561015)the Natural Science Foundation of Jiangxi Province(20151BAB203002)the Open Project Program of Key Laboratory of Functional Small Organic Molecule,Ministry of Education,Jiangxi Normal University(KLFS-KF-201412)
文摘A new cobalt(II) compound, {(Me2NH2)4[Co(SIP)2]·2(DMF)·3(H2O)}n(1, H3 SIP =5-sulfoisophthalic acid), has been synthesized under solvothermal condition and structurally characterized by single-crystal X-ray diffraction. Compound 1 crystallizes in the tetragonal system,space group P 4 21 m, with a = 14.3080(7), b = 14.3080(7), c = 12.1837(9) ?, V = 2494.2(3) ?~3, Z =2, CHNOSCo, Mr = 929.87, Dc = 1.238 g/cm, μ = 0.496 mm, F(000) = 982, flack parameter of 0.007(9), the final R = 0.0767 and wR = 0.2110 for 2391 observed reflections with I >2σ(I). The tetrahedral Co(II) ions are linked by carboxylate groups of the 5-sulfoisophthalate ligands to form an anionic two-dimensional(2D) layer displaying a(4,4) square network, which was charge-balanced by the [MeNH] + cations occupying the spaces between the 2D layers. Magnetic properties of 1 have been investigated in detail using direct-current and alternating-current susceptibility measurements.
基金supported by Research Fund for the Doctor Program of Hubei University of Technology(No.BSQD12139)Ministry of Science and Technology Small and Medium-sized Enterprise Venture Funds(No.12C26214204453)+1 种基金Natural Foundation of Hubei Province(No.2010CDA020)the Key Foundation of Industry-University-Research Cooperation of Education Department,Hubei Province(No.CXY2009A010)
文摘Two new compounds,1([Cu(IDB_)2]Cl_2·2CH_3CH_2OH·2H_2O(IDB = N,N-di(2-benzimidazolylmethyl)imine]) and 2([Cu(EDTB)]·2[C_6H_4(OH)COO]·6H_2O(EDTB = N,N,N',N'-tetrakis-[(2-benzimidazolyl)methyl]-1,2-ethanediamine]),have been synthesized and their crystal structures were determined by single-crystal X-ray diffraction. Crystal 1 belongs to the triclinic system,space group P1 with a = 9.565(2),b = 9.863(2),c = 10.252(3) ?,α = 81.915,β = 88.330,γ = 87.347°,V = 956.28(40) ?3,Z = 1,F(000) = 427,D_c = 1.419 g/cm3,Mr = 817.27 and μ(MoKα) = 0.764 mm^(-1). The final R indices(I 〉 2σ(I)): R = 0.0505,wR = 0.1417; R indices(all data): R = 0.0591,wR = 0.1525. Crystal 2 is of triclinic system,space group P1 with a = 11.487(3),b = 13.396(4),c = 17.977(5) ?,α = 73.899(5),β = 86.629(5),γ = 65.018(4)°,V = 2403.8(12) ?3,Z = 2,F(000) = 1072,D3c = 1.417 g/cm,Mr = 1025.54,μ(MoKα) = 0.528 mm^(-1). The final R indices(I 〉 2σ(I)): R = 0.0769,w R = 0.163 2; R indices(all data): R = 0.0769,wR = 0.1632. The two compounds exhibit mononuclear structures. The copper(Ⅱ) atom of crystal 1 is six-coordinated by four nitrogen atoms of benzimidazole groups and two amine nitrogen atoms from the ligand IDB to adopt a distorted octahedral coordination geometry. The copper(Ⅱ) atom of crystal 2 is six-coordinated by four nitrogen atoms of benzimidazole groups and two amine nitrogen atoms from the ligand EDTB to show a distorted octahedral coordination geometry. Particularly,the two compounds exhibit fluorescent properties at room temperature in ethanol.
基金Supported by the National Natural Science Foundation of China(No.21361011 and 21101081)the Natural Science Foundation of Jiangxi Province(No.20151BAB203002)Science Founds of State key laboratory of Structural Chemistry(20130011)
文摘A two-dimensional coordination polymer, [Pb(bmzbc)2]n(1)(Hbmzbc =4-benzimidazole-1-yl-benzoic acid), has been synthesized by the solvothermal reaction of Pb(NO3)2 with Hbmzbc at 120 ℃ in ethanol solvent. Compound 1 has been characterized by single-crystal X-ray diffraction, powder X-ray diffraction, thermogravimetry analysis, and IR spectrum. Compound 1 crystallizes in the orthorhombic system, space group Pccn, with a = 12.5801(7), b = 20.0795(11), c = 9.1830(6) ?, V = 2319.6(2) A^3, Z = 4, C(28)H(18)N4O4Pb, Mr = 681.65, Dc = 1.952 g/cm^3, μ = 7.319 mm^-1, F(000) = 1312, the final R = 0.0336 and wR = 0.0965 for 1699 observed reflection with I 〉 2σ(I). In 1, the bmzbc^– ligands bridge the Pb(Ⅱ) ions to generate a 2-D sheet with(4, 4) topology. The complex exhibits turquoise photoluminescent emission with a maximum at 480 nm upon excitation at 300 nm.
基金financially supported by the Foundation of Fujian Educational Committee(JA14348)
文摘A novel Dy^(3+) coordination compound,(H_2pipz)(H_3O)[Dy(pydc)_3]·11H_2O(1,pipz = piperazine and H_2pydc = pyridine-2,6-dicarboxylic acid),has been hydrothermally synthesized and characterized by X-ray single-crystal diffraction,elemental analysis. It is interesting that the packing structure of compound 1 contains 22-core water clusters. Compound 1 is extended into a threedimensional supramolecular structure via O···H···O hydrogen bonding interactions. Furthermore,the luminescent property of compound 1 was also investigated.
基金Supported by the Natural Science Foundation of Shandong Province(No.L2 0 0 3B0 1) and the State Key L aboratory ofCrystal MaterialsShandong Universit
文摘A novel dimer of the bismuth(Ⅲ) complex with dithiotetrahydropyrrolocarbamate, [Bi(S_2CNC_4H_8)_2·(NO_3)]_2, was synthesized and the crystal structure was determined by X-ray single crystal diffraction. The crystal belongs to a monoclinic system with space group P2_1/n, a=0.64718(13) nm, b=2.6738(6) nm, c=1.0423(2) nm, β=106.384(3)°, Z=4, V=1.730(3) nm^3, D_c=2.163 g/cm^3, μ=10.682 mm^(-1), F(000)=1072, R=0.0329, wR=0.0659. The structure shows a distorted pentagonal bipyramidal configuration with the seven-coordinated central Bi atom. In the crystal, the molecular packing in the unit cell reveals that the two adjacent molecules are symmetrically linked each other in the dimer by virtue of a couple of Bi-S interaction.
基金the State Key Laboratory of Structural Chemistry the Young Talent Programmed of Fujian Province (No. 2006F3072)
文摘A new bismuth oxalate Na(C5NH6)[Bi(H2O)(C2O4)2]2·4H2O has been obtained under hydrothermal conditions and characterized by X-ray diffraction. It crystallizes in monoclinic, space group C2/m with a = 12.020(5), b = 11.190(8), c = 11.067(10)A, β= 121.78(2)°, NaBi2C13NH18O22, Mr= 981.24, V = 1265.4(16) A^3, Z = 2, Dc = 2.575 g/cm^3,μ(MoKcr) = 14.005 mm^-1, F(000) = 912, R = 0.0179 and wR = 0.0394. In the structure, the Bi(III) centers are interconnected by oxalate ligands to produce honeycomb-like layers, which are further pillared by bridging ligand oxalate molecules to form a 3-D open-framework structure. Furthermore, the title compound exhibits blue luminescence with the emission peaks located at 394nm in the solid state at room temperature, and thus it could be useful in the field of photoactive materials.
文摘Reaction of benzyl chloride with η5-CH3COC5H4W(CO)2Na formed in situ from η6-CH3CO C6H4Na and W(CO)2 gives η6-CH3COC6H4W(CO)3CH2C5H5.The single crystal structure of the product was determined by X-ray diffraction method. It crystallizes in the triclinlc space group P1 with unit cell parameters a= 10.199(5),b=12.116(7), c=14.207(6)A;a=69.47(5),β=72. 38(3),γ= 85.89(4);V= 1569. 9A3, Dc= 1.98 g/cm2; Z=4. Least-square refinement led to final R value of 0. 0539 and Rw value of 0. 0553, based on 3548 independent observed reflections.