A new 2D Zn（Ⅱ） coordination polymer [Zn（TAU）2]n （1, HTAU=2-aminoethane- sulfonic acid） constructed by 2-aminoethanesulfonic acid ligand has been hydrothermally synthesized by the reaction of Zn（CH3COO）2 and 2...A new 2D Zn（Ⅱ） coordination polymer [Zn（TAU）2]n （1, HTAU=2-aminoethane- sulfonic acid） constructed by 2-aminoethanesulfonic acid ligand has been hydrothermally synthesized by the reaction of Zn（CH3COO）2 and 2-aminoethanesulfonic acid with a 1：2 mole ratio and characterized by single-crystal X-ray diffraction, elemental analysis, infrared spectroscopy and thermogravimetric analysis. Crystal structural analysis reveals it crystallizes in monoclinic, space group P21/c with a=8.672（4）, b=6.523（3）, c=9.134（5） , β=115.441（5）°, V=466.6（4） 3, Mr=313.65, Z=2, Dc=2.232 Mg·m-3, F（000） =320, μ（MoKα）=3.091 mm-1, the final R=0.0358 and wR=0.0919 for 2026 observed reflections with Ⅰ 〉 2σ（Ⅰ）. In the structure, each zinc（Ⅱ） ion is coordinated in a slightly distorted octahedron, and each μ3-TAU– acts as a bridge to bond three neighboring Zn（Ⅱ） ions to form an infinite 2D network structure.展开更多
A novel pyrazine-2,3-dicarboxylic acid bridged Co(II) phen complex 2 ∞ [Co- ...A novel pyrazine-2,3-dicarboxylic acid bridged Co(II) phen complex 2 ∞ [Co- (phen)(μ-L)3/3]?H2O (H2L = pyrazine-2,3-dicarboxylic acid) has been hydrothermally synthesized, and X-ray single-crystal diffraction analysis shows that it crystallizes in the monoclinic system, space group P21/n with a = 11.480(2), b = 11.885(2), c = 12.939(3) ?, β = 110.55(3)°, V = 1653.1(6) ?3, Mr = 423.25, Dc = 0.425 g/cm3, Z = 4, R = 0.0361 and wR = 0.1011. The title complex consists of 2D 2 ∞ [Co(phen)(μ-L)3/3] layers and crystal water molecules. Each Co atom is octahedrally coordinated by three N atoms and three O atoms to form 2D 2 ∞ [Co(phen)(μ-L)3/3] polymeric layers. Furthermore, such 2D layers are stacked into 3D supramolecular frameworks via Van der Waals’ intermolecular forces, strong and weak hydrogen-bond interactions. The coordination phen and crystal water molecules are resided into cavities of the frameworks.展开更多
基金Supported by the foundation for Dr of Jianggangshan University (JZ10044)the NSF of Guangxi Province (No. 0832090)the NSF of the Education Committee of Guangxi Province (No. 201012MS203)
文摘A new 2D Zn（Ⅱ） coordination polymer [Zn（TAU）2]n （1, HTAU=2-aminoethane- sulfonic acid） constructed by 2-aminoethanesulfonic acid ligand has been hydrothermally synthesized by the reaction of Zn（CH3COO）2 and 2-aminoethanesulfonic acid with a 1：2 mole ratio and characterized by single-crystal X-ray diffraction, elemental analysis, infrared spectroscopy and thermogravimetric analysis. Crystal structural analysis reveals it crystallizes in monoclinic, space group P21/c with a=8.672（4）, b=6.523（3）, c=9.134（5） , β=115.441（5）°, V=466.6（4） 3, Mr=313.65, Z=2, Dc=2.232 Mg·m-3, F（000） =320, μ（MoKα）=3.091 mm-1, the final R=0.0358 and wR=0.0919 for 2026 observed reflections with Ⅰ 〉 2σ（Ⅰ）. In the structure, each zinc（Ⅱ） ion is coordinated in a slightly distorted octahedron, and each μ3-TAU– acts as a bridge to bond three neighboring Zn（Ⅱ） ions to form an infinite 2D network structure.
基金This work was supported by the Science and Technology Bureau of Jinhua City (No 2003-01-179)
文摘A novel pyrazine-2,3-dicarboxylic acid bridged Co(II) phen complex 2 ∞ [Co- (phen)(μ-L)3/3]?H2O (H2L = pyrazine-2,3-dicarboxylic acid) has been hydrothermally synthesized, and X-ray single-crystal diffraction analysis shows that it crystallizes in the monoclinic system, space group P21/n with a = 11.480(2), b = 11.885(2), c = 12.939(3) ?, β = 110.55(3)°, V = 1653.1(6) ?3, Mr = 423.25, Dc = 0.425 g/cm3, Z = 4, R = 0.0361 and wR = 0.1011. The title complex consists of 2D 2 ∞ [Co(phen)(μ-L)3/3] layers and crystal water molecules. Each Co atom is octahedrally coordinated by three N atoms and three O atoms to form 2D 2 ∞ [Co(phen)(μ-L)3/3] polymeric layers. Furthermore, such 2D layers are stacked into 3D supramolecular frameworks via Van der Waals’ intermolecular forces, strong and weak hydrogen-bond interactions. The coordination phen and crystal water molecules are resided into cavities of the frameworks.
