一种有机八氰合钼(Ⅳ)酸盐的合成及晶体结构分析  

Synthesis and Crystal Structure of an Organic Octacyano-molybdate(Ⅳ)

作　　者：张载超[1] 张维光[1] 

机构地区：[1]淮阴师范学院化学化工学院,江苏淮安223300

出　　处：《淮阴师范学院学报（自然科学版）》2009年第4期314-317,共4页Journal of Huaiyin Teachers College;Natural Science Edition

摘　　要：[M(CN)8]n-(M=Mo,W,Nb;n=3,4)是一类重要的磁性材料构筑单元.化合物(C6H6N3)4[Mo(CN)8].H2O的晶体结构属于三斜晶系的P1-空间群,其不对称单元由1个[Mo(CN)8]4-,4个质子化的苯并三唑有机阳离子C6H6N3+和1个结晶水组成.[Mo(CN)8]4-离子中,Mo中心处于扭曲的反四棱柱配位环境.8个未配位的氰基氮原子作为氢键的受体,有机阳离子上质子化的氮原子和结晶水作为氢键的给体,形成了丰富的氢键作用,这些氢键作用连同部分有机阳离子间的π-π堆积、阴阳离子间的静电力和Van Der Waals力构筑成三维超分子网络.Octacyanometalates,[M（CN）8]n-（M=Mo,W,Nb;n=3,4）,are important building units of magnetic materials.The title compound,（C6H6N3）4[Mo（CN）8]·H2O,crystallizes in the triclinic system with Pī space group, the asymmetry unit of which is composed of one [Mo（CN）8]4-anion,four protonate benzotriazolium organocations and a lattice water.The Mo center of [Mo（CN）8]4-shows a slight distorted square antiprism coordination environment.The N atoms of cyano groups,acting as acceptors of hydrogen bonds,together with protonate N atoms from organocations and the lattice water, serving as donors of hydrogen bonds, form intricate hydrogen bond interactions, thus generating three-dimensional supramolecular network with the help of π-π interactions of some organocations.

关 键 词：八氰合钼 晶体结构 合成 

分 类 号：O626[理学—有机化学]