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2D氢键网络镉配合物Cd(pyridine-2-sulfonato)_2(H_2O)_2和锌配合物Zn(pyridine-2-sulfonato)_2(H_2O)_2的合成和晶体结构 被引量:3

Syntheses and Crystal Structures of Two 2D Hydrogen-bonded Complexes: Diaqua-bis(pyridine-2-sulfonato-N,O) Cadmium(II) and Diaqua-bis(pyridine-2-sulfonato-N,O) Zinc(II)
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摘要 合成了镉的吡啶-2-磺酸配合物Cd(C5H4NSO3)2(H2O)2 1和锌的吡啶-2-磺酸配合物Zn(C5H4NSO3)2(H2O)2 2。 研究表明, 2个化合物属异质同晶, 均属单斜晶系, 空间群为C2/c. 化合物1晶胞参数为:a = 13.7671(5), b = 7.2778(3), c = 16.1559(9) ? b = 106.656(3)? V = 1550.8(1) 3, Z = 4, Dc = 1.990 g/cm3, m =1.719 mm-1, F(000) = 920, R = 0.0225, wR = 0.0584, 共收集到1759个独立衍射点, 其中I≥2(I)的可观测点为1681个;化合物2晶胞参数为:a = 13.711(1), b = 7.1451(9), c = 15.972(1) , b =107.079(5)? V = 1495.7(3) 3, Z = 4, Dc = 1.855 g/cm3, m = 1.964 mm-1, F(000) = 848, R = 0.0310, wR = 0.0831, 共收集到1707个独立衍射点, 其中I≥2(I)的可观测点为1592个。在2个标题配合物中, Cd2+离子(或Zn2+离子)由2个吡啶-2-磺酸中的2个氮和2个氧以及2个水分子中的2个氧配位形成畸变的N2O4八面体配位构型。每个配合物分子具有晶体学2次旋转轴对称性。配合物分子之间通过许多OH(配位水分子)LO(未配位磺酸根)氢键联结成二维结构网络。 In this paper the syntheses and crystal structures of diaqua-bis(pyridine-2-sulfonato-N,O) cadmium(II) 1 ([Cd(C5H4NSO3)(2)(H2O)(2)]) and diaqua-bis(pyridine-2-sulfonato-N,O) zinc(H) 2 ([Zn(C5H4NSO3)(2)(H2O)(2)]) are reported. Complexes I and 2 are isostructural and belong to monoclinic with space group C2/c. Crystal data: a = 13.7671(5), b = 7.2778(3), c = 16.1559(9) Angstrom, beta = 166.656(3)degrees, V = 1550.8(1) Angstrom(3), Z = 4, D-c = 1.990 g/cm(3), F(000) = 920, mu = 1.719 mm(-1), R = 0.0225 and wR = 0.0584 for 1; a = 13.711(1), b = 7.1451(9), c = 15.972(1) Angstrom, beta = 107.079(5)degrees, V = 1495.7(3) Angstrom(3), Z = 4, D-c = 1.855 g/cm(3), F(000) = 848, mu = 1.964 mm(-1), R = 0.0310 and wR = 0.0831 for 2. The Cd atom in complex 1 and Zn in 2 are both six-coordinated by two O and two N atoms of two pyridine-2-sulfonate ligands, and two water O atoms, forming a distorted octahedral coordination geometry. The molecules in these two title complexes have a crystallographic C2 symmetry. The neighboring molecules in each complex are connected by hydrogen bonds of O-H (coordinated water molecule)O-...(uncoordinated sulfonate), obtaining a two-dimensional supramolecular architecture.
出处 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 北大核心 2004年第7期798-802,共5页 结构化学(英文)
基金 福建省自然科学基金资助项目(E0110010)
关键词 氢键 镉配合物 锌配合物 合成 晶体结构 吡啶-2-磺酸 cadmium complex zinc complex pyridine-2-sulfonate crystal structure hydrogen bond
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