由草酸及双咪唑基配体构筑的二维锰(Ⅱ)配位聚合物的水热合成及晶体结构(英文)

Hydrothermal Synthesis and Crystal Structure of a 2D Network Mn(Ⅱ) Coordination Polymer Based on Oxalic Acid and Bis(imidazol) Ligands

通过水热法合成了一个新的金属-有机配位聚合物[Mn(C2O4)(bimb)]n.0.25nH2O(H2C2O4=草酸,bimb=1,4-双(咪唑基-1-基)丁烷)。并对其进行了元素分析、红外光谱、紫外光谱、热重和X-射线单晶衍射测定。该配合物属于三斜晶系,P1空间群。在晶体结构中,锰原子为六配位与来自2个不同的C2O42-配体上的4个羧基氧原子和来自2个bimb配体上的2个氮原子配位,呈现畸变的八面体几何构型。

A new metal-organic coordination polymer [Mn（C2O4）（bimb）]n. 0.25nH2O （1） （H2C2O4=oxalic acid, bimb= 1,4-bis（imidazol-1-yl）-butane） has been hydrothermally synthesized and structurally characterized by elemental analysis, IR, UV spectrum, TG and single-crystal X-ray diffraction. The title compound crystallizes in the triclinic system, space group P1 with a=0.928 62（12） nm, b=0.965 61（13） nm, c=0.972 27（13） nm, α=67.992（2）°, β= 87.361（2）°, γ=64.596（2）°, V=0.723 25（17） nm3, C24H29Mn2N8O8.5, Mr=675.43, Dc=1.551 g.cm-3,μ（Mo Ka）=0.936 mm-1, F （000）=347, Z=1, R=0.031 2, WR=0.074 9. In the crystalstructure, the manganese atom is six-coordinated with four carboxylate oxygen atoms from two different C2O2- ligands and two nitrogen atoms from two bimb ligands, showing a distorted octahedral geometry. CCDC： 929937.