A new Zn(Ⅱ) coordination polymer,namely {[Zn_(1.5)(1,3,5-btc^(3-))(dtb)(H_2O)](H_2O)_2}_n(1)(1,3,5-H_3btc = 1,3,5-benzenetricarboxylic acid,dtb = 1,3-di-(1,2,4-triazole-4-yl)benzene),has been hydrothermally synthesiz...A new Zn(Ⅱ) coordination polymer,namely {[Zn_(1.5)(1,3,5-btc^(3-))(dtb)(H_2O)](H_2O)_2}_n(1)(1,3,5-H_3btc = 1,3,5-benzenetricarboxylic acid,dtb = 1,3-di-(1,2,4-triazole-4-yl)benzene),has been hydrothermally synthesized and structurally characterized. X-ray single-crystal diffraction determination reveals that 1 crystallizes in the monoclinic C2/c space group with a = 33.811(12),b = 8.406(2),c = 17.296(4) ?,β = 120.593(2)°,V = 4232(2) ?~3,Z = 4,Mr = 1142.88,Dc = 1.794 Mg/m^3,μ = 1.783 mm^(-1),F(000) = 2320,the final R = 0.0338 and wR = 0.0827 for 3043 observed reflections with I > 2σ(I). Compound 1 exhibits 1D Zn(Ⅱ)-carboxylate chains,which are connected into a 3D porous framework with large channels by dtb,and then three identical 3D networks are interpenetrated with each other. In addition,the luminescence property of the complex has also been investigated.展开更多
The reaction of Zn(ClO4)2·6H2O with 3,3'-bis(2-benzimidazolyl)-2,2'-dipyridine (L) gave a mononuclear zinc(II) complex: [ZnL2](ClO4)2·2DMF·4H2O, which was structurally characterized by EA, IR, U...The reaction of Zn(ClO4)2·6H2O with 3,3'-bis(2-benzimidazolyl)-2,2'-dipyridine (L) gave a mononuclear zinc(II) complex: [ZnL2](ClO4)2·2DMF·4H2O, which was structurally characterized by EA, IR, UV, 1H NMR, fluorescence spectrum and single-crystal X-ray diffraction. The crystal (C54H54Cl2N14O14Zn, Mr = 1259.38) belongs to the monoclinic system, space group C2/c with a = 20.874(2), b = 14.9953(16), c = 20.462(3) , β = 101.553(2)°, V = 6274.8(13) 3, Z = 4, Dc = 1.333 g/cm3, F (000) = 2608, μ(MoKα) = 0.548 mm–1, R = 0.0682 and wR = 0.1931 for 4984 observed reflections with I > 2σ(I). The Zn(II) is four-coordinated in a slightly distorted tetrahedral geometry through four N atoms from four benzimidazole units of two ligands. In the crystal lattice, the [ZnL2]2+ cations are linked to each other by extensive intermolecular hydrogen bonds between nitrogen atoms of benzimidazole rings, water and DMF molecules.展开更多
Two Co(Ⅱ) coordination polymers, namely [Co(L)Cl]_n(1) and [Co(L)(CH_3 COO)]_n(2), {HL = 3,5-di(4 H-1,2,4-triazole-4-yl)benzoic acid}, were synthesized under hydrothermal conditions. Compound 1 crystallizes in orthor...Two Co(Ⅱ) coordination polymers, namely [Co(L)Cl]_n(1) and [Co(L)(CH_3 COO)]_n(2), {HL = 3,5-di(4 H-1,2,4-triazole-4-yl)benzoic acid}, were synthesized under hydrothermal conditions. Compound 1 crystallizes in orthorhombic system, space group Pmma with a = 7.032(5), b = 11.555(8), c = 8.185(5) ?, V = 665.1(7) ?~3, Z = 2, Dc = 1.746 g/cm3~, F(000) = 350, Mr = 349.61, μ = 1.504 mm^(-1), the final R = 0.0568 and w R = 0.1739 for 2312 observed reflections with I > 2σ(I). Compound 2 crystallizes in orthorhombic system, space group Pmma with a = 7.7505(17), b = 11.391(3), c = 8.0298(18) ?, V = 708.9(3) ?~3, Z = 2, Dc = 1.748 g/cm^3, F(000) = 378, Mr = 373.20, μ = 1.245 mm-1, the final R = 0.0350 and w R = 0.0873 for 5239 observed reflections with I > 2σ(I). Single-crystal X-ray analyses revealed that complexes 1 and 2 exhibit similar 2 D layer structures with uncoordinated carboxyl as dangling arms. The neighboring layers are further connected by these arms, leading to interest 2 D → 3 D polythreading frameworks. Moreover, the magnetic susceptibility study indicates compound 1 exhibits antiferromagnetic behavior.展开更多
A new 3d-4f heterometallic polymer {[Sm2Cu(PDC)2(SO4)2(H2O)6]·2H2O}n 1 has been synthesized by Sm2O3, Cu(SO4)2·5H2O and pyridine-3,5-dicarboxylic acid under hydrothermal conditions. The compound crystallizes...A new 3d-4f heterometallic polymer {[Sm2Cu(PDC)2(SO4)2(H2O)6]·2H2O}n 1 has been synthesized by Sm2O3, Cu(SO4)2·5H2O and pyridine-3,5-dicarboxylic acid under hydrothermal conditions. The compound crystallizes in triclinic system, space group P1, with a = 6.352(7), b = 10.040(10), c = 10.315(11) , α = 94.958(14), β = 95.556(7), γ = 99.747(14)°, V = 641.7(12)3, Z = 1, Mr = 1030.63, Dc = 2.651 Mg/m3, μ = 5.615 mm-1, F(000) = 491, the final R = 0.0491 and wR = 0.1345 for 2098 observed reflections with I > 2σ(I). The compound is a three-dimensional network structure in which infinite lanthanide-carboxylate chains are linked by [Cu(SO4)2]2- metalloligands to form a mixed-metal coordination network.展开更多
A novel organic polycarboxylate N-cyclohexylaziridines-2R,3S-dicarboxylic acid was synthesized and reacted with Ni2(OH)2CO3.As a result,a coordination polymer was obtained.It crystallizes in orthorhombic,space group P...A novel organic polycarboxylate N-cyclohexylaziridines-2R,3S-dicarboxylic acid was synthesized and reacted with Ni2(OH)2CO3.As a result,a coordination polymer was obtained.It crystallizes in orthorhombic,space group Pbca with a = 8.6325(10),b = 10.5414(13),c = 27.644(3) ,Z = 4,V = 2515.5(5) 3,C20H34N2Ni2O12,Mr = 611.91,Dc = 1.616 g/cm3,μ = 1.562 mm-1,F(000) = 1280,the final R = 0.0320 and wR = 0.0677 for 2854 independent reflections with Rint = 0.0390.Crystal structure shows that the coordination environment around the Ni(Ⅱ) ion can be described as a slightly distorted octahedron.The ligands act as a bridge through the carboxyl O atoms and join the Ni atoms into an infinite 1D chain structure.The 1D chain forms a 2D network through intermolecular O-H…O hydrogen bonds.The magnetic susceptibility measurements(2～300 K) agree with a weak antiferronmagnetic interaction between neighboring Ni ions in the chain.展开更多
Under given conditions, two complexes of [Ni(H2O)2BEDA]·2H2O 1 and [Ni(Py)2-BEDA]·6H2O 2 (BEDA = bis(3-methoxy-2-pyridyl)ether-6,6′-dicarboxylic acid) have been synthe-sized and characterized by elemental a...Under given conditions, two complexes of [Ni(H2O)2BEDA]·2H2O 1 and [Ni(Py)2-BEDA]·6H2O 2 (BEDA = bis(3-methoxy-2-pyridyl)ether-6,6′-dicarboxylic acid) have been synthe-sized and characterized by elemental analysis and X-ray single-crystal diffraction. Crystal data for 1: C14H18NiN2O11, monoclinic C2/c, a = 14.3844(17), b = 12.9900(15), c = 9.6309(11), β = 104.3350(10)°, V = 1743.5(4)3, Z = 4, Dc = 1.711 g/cm3, F(000) = 928, μ = 1.179 mm-1, Mr = 449.01, the final R = 0.0228 and wR = 0.0625. Crystal data for 2: C24H32NiN4O13, triclinic P1, a = 9.423(2), b = 11.863(3), c = 13.089(3), α = 91.511(3), β = 92.465(3), γ = 100.696(2)°, V = 1435.6(6)3, Z = 2, Dc = 1.488 g/cm3, F(000) = 672, μ = 0.748 mm-1, Mr = 643.25, the final R = 0.0400 and wR = 0.0975. Interestingly, in the two complexes, lattice water molecules dominate its crystal structures. Therefore, extensive intermolecular hydrogen bonds assemble 1 and 2 into 2D extended sheets and a 3D open framework, respectively. Furthermore, water molecules present in 2 are associated to form water clusters.展开更多
A new 3D supramolecular complex,namely dimethylammonium 4,4΄-([2,2΄-bipyrimidine]-5,5΄-diyl)bis(2-hydroxybenzoate)dihydrate,has been synthesized by the reaction of 4,4΄-([2,2΄-bipyrimidine]-5,5΄-diyl)bis(2-hydroxybenz...A new 3D supramolecular complex,namely dimethylammonium 4,4΄-([2,2΄-bipyrimidine]-5,5΄-diyl)bis(2-hydroxybenzoate)dihydrate,has been synthesized by the reaction of 4,4΄-([2,2΄-bipyrimidine]-5,5΄-diyl)bis(2-hydroxybenzoic acid)with aqueous dimethylamine solution and characterized by single-crystal X-ray diffraction,^(1)H NMR spectroscopy and elemental analysis.It belongs to triclinic system,space groupP with a=6.5539(4),b=9.4977(6),c=12.1407(8)Å,α=72.299(6),β=89.160(5),γ=70.797(8)°,V=676.52(8)Å^(3),Z=1,Mr=556.57,µ=0.103 mm^(-1),Dc=1.366 g/cm^(3),F(000)=294,the final R=0.0828 and wR=0.2083 for 1934 observed reflections with I>2σ(I).The 4,4΄-([2,2΄-bipyrimidine]-5,5΄-diyl)bis(2-hydroxybenzoic acid)dianion,dimethylammonium cation,and water molecule are interconnected by O−H∙∙∙O,N−H∙∙∙N,and N−H∙∙∙O hydrogen bonds,forming a two-dimensional(2D)layer.Two adjacent 2D layers are further stacked into a three-dimensional supramolecular structure through O−H∙∙∙O hydrogen bonds.In addition,the luminescent property of this supramolecular complex has also been investigated.展开更多
基金We are grateful to the Henan Innovation Project For University Prominent Research Talents(No.2005KYCX021)Natural Science Foundation of Henan Province for financial support.
基金supported by the National Natural Science Foundation of China(21372112)the Science and Technology Research Projects of Education Department of Henan Province(15A150064)
文摘A new Zn(Ⅱ) coordination polymer,namely {[Zn_(1.5)(1,3,5-btc^(3-))(dtb)(H_2O)](H_2O)_2}_n(1)(1,3,5-H_3btc = 1,3,5-benzenetricarboxylic acid,dtb = 1,3-di-(1,2,4-triazole-4-yl)benzene),has been hydrothermally synthesized and structurally characterized. X-ray single-crystal diffraction determination reveals that 1 crystallizes in the monoclinic C2/c space group with a = 33.811(12),b = 8.406(2),c = 17.296(4) ?,β = 120.593(2)°,V = 4232(2) ?~3,Z = 4,Mr = 1142.88,Dc = 1.794 Mg/m^3,μ = 1.783 mm^(-1),F(000) = 2320,the final R = 0.0338 and wR = 0.0827 for 3043 observed reflections with I > 2σ(I). Compound 1 exhibits 1D Zn(Ⅱ)-carboxylate chains,which are connected into a 3D porous framework with large channels by dtb,and then three identical 3D networks are interpenetrated with each other. In addition,the luminescence property of the complex has also been investigated.
基金Supported by the National Natural Science Foundation of China (No. 20471054) the Henan Innovation Project for University Prominent Research Talents (No. 2005 KYCX021)
文摘The reaction of Zn(ClO4)2·6H2O with 3,3'-bis(2-benzimidazolyl)-2,2'-dipyridine (L) gave a mononuclear zinc(II) complex: [ZnL2](ClO4)2·2DMF·4H2O, which was structurally characterized by EA, IR, UV, 1H NMR, fluorescence spectrum and single-crystal X-ray diffraction. The crystal (C54H54Cl2N14O14Zn, Mr = 1259.38) belongs to the monoclinic system, space group C2/c with a = 20.874(2), b = 14.9953(16), c = 20.462(3) , β = 101.553(2)°, V = 6274.8(13) 3, Z = 4, Dc = 1.333 g/cm3, F (000) = 2608, μ(MoKα) = 0.548 mm–1, R = 0.0682 and wR = 0.1931 for 4984 observed reflections with I > 2σ(I). The Zn(II) is four-coordinated in a slightly distorted tetrahedral geometry through four N atoms from four benzimidazole units of two ligands. In the crystal lattice, the [ZnL2]2+ cations are linked to each other by extensive intermolecular hydrogen bonds between nitrogen atoms of benzimidazole rings, water and DMF molecules.
基金supported by the National Natural Science Foundation of China(21372112)
文摘Two Co(Ⅱ) coordination polymers, namely [Co(L)Cl]_n(1) and [Co(L)(CH_3 COO)]_n(2), {HL = 3,5-di(4 H-1,2,4-triazole-4-yl)benzoic acid}, were synthesized under hydrothermal conditions. Compound 1 crystallizes in orthorhombic system, space group Pmma with a = 7.032(5), b = 11.555(8), c = 8.185(5) ?, V = 665.1(7) ?~3, Z = 2, Dc = 1.746 g/cm3~, F(000) = 350, Mr = 349.61, μ = 1.504 mm^(-1), the final R = 0.0568 and w R = 0.1739 for 2312 observed reflections with I > 2σ(I). Compound 2 crystallizes in orthorhombic system, space group Pmma with a = 7.7505(17), b = 11.391(3), c = 8.0298(18) ?, V = 708.9(3) ?~3, Z = 2, Dc = 1.748 g/cm^3, F(000) = 378, Mr = 373.20, μ = 1.245 mm-1, the final R = 0.0350 and w R = 0.0873 for 5239 observed reflections with I > 2σ(I). Single-crystal X-ray analyses revealed that complexes 1 and 2 exhibit similar 2 D layer structures with uncoordinated carboxyl as dangling arms. The neighboring layers are further connected by these arms, leading to interest 2 D → 3 D polythreading frameworks. Moreover, the magnetic susceptibility study indicates compound 1 exhibits antiferromagnetic behavior.
基金supported by the Youth Foundation of Luoyang Normal University(No.10000875)the Foundation of Education Department of Henan Province(No.2011A150021)
文摘A new 3d-4f heterometallic polymer {[Sm2Cu(PDC)2(SO4)2(H2O)6]·2H2O}n 1 has been synthesized by Sm2O3, Cu(SO4)2·5H2O and pyridine-3,5-dicarboxylic acid under hydrothermal conditions. The compound crystallizes in triclinic system, space group P1, with a = 6.352(7), b = 10.040(10), c = 10.315(11) , α = 94.958(14), β = 95.556(7), γ = 99.747(14)°, V = 641.7(12)3, Z = 1, Mr = 1030.63, Dc = 2.651 Mg/m3, μ = 5.615 mm-1, F(000) = 491, the final R = 0.0491 and wR = 0.1345 for 2098 observed reflections with I > 2σ(I). The compound is a three-dimensional network structure in which infinite lanthanide-carboxylate chains are linked by [Cu(SO4)2]2- metalloligands to form a mixed-metal coordination network.
文摘A novel organic polycarboxylate N-cyclohexylaziridines-2R,3S-dicarboxylic acid was synthesized and reacted with Ni2(OH)2CO3.As a result,a coordination polymer was obtained.It crystallizes in orthorhombic,space group Pbca with a = 8.6325(10),b = 10.5414(13),c = 27.644(3) ,Z = 4,V = 2515.5(5) 3,C20H34N2Ni2O12,Mr = 611.91,Dc = 1.616 g/cm3,μ = 1.562 mm-1,F(000) = 1280,the final R = 0.0320 and wR = 0.0677 for 2854 independent reflections with Rint = 0.0390.Crystal structure shows that the coordination environment around the Ni(Ⅱ) ion can be described as a slightly distorted octahedron.The ligands act as a bridge through the carboxyl O atoms and join the Ni atoms into an infinite 1D chain structure.The 1D chain forms a 2D network through intermolecular O-H…O hydrogen bonds.The magnetic susceptibility measurements(2～300 K) agree with a weak antiferronmagnetic interaction between neighboring Ni ions in the chain.
基金supported by the Henan Innovation Project for University Prominent Research Talents (No. 2005KYCX021)Natural Science Foundation of Henan Province (No. 082300420040)
文摘Under given conditions, two complexes of [Ni(H2O)2BEDA]·2H2O 1 and [Ni(Py)2-BEDA]·6H2O 2 (BEDA = bis(3-methoxy-2-pyridyl)ether-6,6′-dicarboxylic acid) have been synthe-sized and characterized by elemental analysis and X-ray single-crystal diffraction. Crystal data for 1: C14H18NiN2O11, monoclinic C2/c, a = 14.3844(17), b = 12.9900(15), c = 9.6309(11), β = 104.3350(10)°, V = 1743.5(4)3, Z = 4, Dc = 1.711 g/cm3, F(000) = 928, μ = 1.179 mm-1, Mr = 449.01, the final R = 0.0228 and wR = 0.0625. Crystal data for 2: C24H32NiN4O13, triclinic P1, a = 9.423(2), b = 11.863(3), c = 13.089(3), α = 91.511(3), β = 92.465(3), γ = 100.696(2)°, V = 1435.6(6)3, Z = 2, Dc = 1.488 g/cm3, F(000) = 672, μ = 0.748 mm-1, Mr = 643.25, the final R = 0.0400 and wR = 0.0975. Interestingly, in the two complexes, lattice water molecules dominate its crystal structures. Therefore, extensive intermolecular hydrogen bonds assemble 1 and 2 into 2D extended sheets and a 3D open framework, respectively. Furthermore, water molecules present in 2 are associated to form water clusters.
基金the National Natural Science Foundation of China(21372112)。
文摘A new 3D supramolecular complex,namely dimethylammonium 4,4΄-([2,2΄-bipyrimidine]-5,5΄-diyl)bis(2-hydroxybenzoate)dihydrate,has been synthesized by the reaction of 4,4΄-([2,2΄-bipyrimidine]-5,5΄-diyl)bis(2-hydroxybenzoic acid)with aqueous dimethylamine solution and characterized by single-crystal X-ray diffraction,^(1)H NMR spectroscopy and elemental analysis.It belongs to triclinic system,space groupP with a=6.5539(4),b=9.4977(6),c=12.1407(8)Å,α=72.299(6),β=89.160(5),γ=70.797(8)°,V=676.52(8)Å^(3),Z=1,Mr=556.57,µ=0.103 mm^(-1),Dc=1.366 g/cm^(3),F(000)=294,the final R=0.0828 and wR=0.2083 for 1934 observed reflections with I>2σ(I).The 4,4΄-([2,2΄-bipyrimidine]-5,5΄-diyl)bis(2-hydroxybenzoic acid)dianion,dimethylammonium cation,and water molecule are interconnected by O−H∙∙∙O,N−H∙∙∙N,and N−H∙∙∙O hydrogen bonds,forming a two-dimensional(2D)layer.Two adjacent 2D layers are further stacked into a three-dimensional supramolecular structure through O−H∙∙∙O hydrogen bonds.In addition,the luminescent property of this supramolecular complex has also been investigated.
