摘要
以ZnCl2,1,3-二羧甲基苯并咪唑为原料,采用常温溶剂挥发法,在甲醇水溶液中合成了Zn(Ⅱ)配合物{[Zn(BCBI)2(H2O)4].2H2O(1)},其结构经IR,元素分析和X-射线单晶衍射表征。1属三斜晶系,P-1空间群,晶胞参数a=7.4009(15),b=9.4066(19),c=9.6559(19),α=81.58(3)°,β=75.97(3)°,γ=78.08(3)°,V=634.8(2)3,Z=1,Dc=1.674 mg.cm-3,μ=1.050 mm-1,S=1.023。1中Zn(Ⅱ)与六个氧原子配位(两个氧原子来自两个配体H2BCBI分子中的羧基氧,四个氧原子为四个H2O的氧原子)形成变形的八面体构型。1的分子间氢键及H2BCBI间的π-π堆积将其拓展为三维结构,并对稳定晶体结构起着重要作用。
Complex [Zn（BCBI）2（H2O）4]·2H2O（1） was synthesized by reaction of 1,3-bis-carboxymethyl-benzimidazole（H2BCBI） with zinc chloride in an aqueous solution of methanol by solvent evaporation method.The structure was characterized by IR,elemental analysis and X-ray single crystal diffraction.1 belongs to triclinic system,space group P-1 with a=7.400 9（15）,b=9.4066（19）,c=9.6559（19）,α=81.58（3）°,β=75.97（3）°,γ=78.08（3）°,V=634.8（2）3,Z=1,Dc=1.674 mg·cm-3,μ=1.050 mm-1,S=1.023.Zn（Ⅱ） in 1 is coordinated with four water molecules and two monodentate H2BCBI ligands in a slightly distorted octahedral geometry.The crystal structure is stabilized by intermolecular O-H┈O hydrogen bonds and the aromatic weak π-π packing interactions,which extended 1 into a three-dimensional open framework,which is important for stabilizing the structure.
出处
《合成化学》
CAS
CSCD
北大核心
2011年第1期69-72,共4页
Chinese Journal of Synthetic Chemistry
基金
新疆大学博士启动基金资助项目(BS07020428022)
