摘要
通过水热方法,采用H2bpdc(H2bpdc=2,2′-bipyridine-6,6′-dicarboxylic acid)和prz(prz=piperazine)与FeSO4.7H2O反应,合成了一个质子传递化合物(H2prz)[Fe(bpdc)2].3H2O(1),并对其结构、热稳定性和磁性质进行了研究。结构分析结果表明该化合物的晶体属于单斜晶系,P21/n空间群。该化合物的分子由1个[Fe(bpdc)2]2-阴离子,1个H2prz2+阳离子和3个水分子组成。其中,Fe原子采取了少见的八配位畸变的十二面体构型。这些化合物分子通过分子间的氢键和π-π堆积作用形成了1个三维的超分子框架。
A 1：1 proton-transfer compound, namely （H2prz） [Fe （bpdc）2] - 3H20 （1） （H2bpdc =2,2＇ -bipyridine-6,6＇ - dicarboxylic acid and prz=piperazine） has been obtained by hydrothermal method and characterized by single crystal X-ray diffraction. Compound 1 crystallizes in monoclinic space group P21/n, with a=0.954 10（12） nm, b = 2.196 1（3） nm, c=1.252 54（15） nm,/3=91.295（5）°, V=2.623 8（5） nm3, Z=4, R=0.059 1 and wR=0.144 4 （I〉2σ（I））. Single crystal X-ray diffraction analysis reveals that compound 1 consists of discrete anion of [Fe（bpdc）2]2-, piperazinium cation （H2prz2＋）, and three water molecules, in which Fe（Ⅱ） ion is eight-coordinated with four N atoms and four O atoms, resulting in a distorted dodecahedral coordination geometry. The complex 1 further extends its structure into a three-dimensional supramolecular architecture by intermolecular strong O-H... O and N-H…O hydrogen bonds and weak π-π stacking interactions. CCDC： 779876.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2012年第5期1038-1042,共5页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金资助项目(No.21071068)
