3-羧基苯氧乙酸钴配合物[Co(m-CPOAH)2(H2O)4]的合成与晶体结构

合成了一个新的配合物 Co(m-CPOAH)2(H2O)4](m-CPOAH- = 3-羧基苯氧乙酸根), 并对其进行了元素分析、红外和单晶X-射线的表征。结果表明:配合物晶体属三斜晶系, 空间群为P, 晶胞参数为a = 4.9701(10), b = 5.8701(12), c = 18.272(4) , a = 97.50(3), b = 94.76(3), g = 98.34(3), V = 520.11(18) 3, Z = 1, Mr = 521.29, Dc = 1.664 g/cm3, m = 0.901 mm-1, F(000) = 269, 最终R = 0.0415, wR = 0.0787。2个不同配体的氧乙酸上的羧基氧原子和4个配位水分子与钴原子配位, Co(Ⅱ)原子为六配位八面体构型, 且由分子间氢键形成了三维超分子氢键网络结构。

Synthesis and Crystal Structure of Complex[Co(m-CPOAH)2(H2O)4] with 3-Carboxyphenoxyacetate Ligand

A novel complex of Co(m-CPOAH)2(H2O)4 (m-CPOAH- = 3-carboxylphenoxyacetate) was synthesized and characterized by elemental analysis, IR, X-ray single-crystal diffraction. It belongs to the triclinic system, space group P?with a = 4.9701(10), b = 5.8701(12), c = 18.272(4) , a = 97.50(3), b = 94.76(3), g = 98.34(3), V = 520.11(18) 3, Z = 1, Mr = 521.29, Dc = 1.664 g/cm3, m = 0.901 mm-1, F(000) = 269, the final R = 0.0415 and wR = 0.0787. Two carboxylate oxygen atoms of different oxoaxetate ligands and four water molecules are coordinated to the cobalt atom, forming an approximate octahedral coordination sphere. The 3D supramolecular hydrogen bonding network is formed by intermolecular hydrogen bonds.