[δ-Mo_8O_(26)]^(4-)支撑的两种连接异构体的合成、结构及其性质研究  

Syntheses,structures and properties of two [δ-Mo_8O_(26)]^(4-)-supported linkage isomers

作　　者：由万胜[1] 齐丽君[1] 赵燚[1] 张帆[1] 方勇[1] 

机构地区：[1]辽宁师范大学化学化工学院,辽宁大连116029

出　　处：《辽宁师范大学学报（自然科学版）》2010年第1期56-60,共5页Journal of Liaoning Normal University:Natural Science Edition

基　　金：国家自然科学基金项目(20773057)

摘　　要：利用水热合成技术,合成了{[Cu(tpoen)]2Mo8O26}.2H2O(简写为1.2H2O)和{[Cu(tpoen)]2Mo8O26}.3H2O(简写为2.3H2O)2种配位化合物,并通过X-射线单晶衍射等技术确定了结构.1和2均是由[δ-Mo8O26]4-阴离子双支撑的Cu(Ⅱ)配合物,即2种连接异构体,其中1是[δ-Mo8O26]4-阴离子提供环上的MoO6八面体的端氧原子与[Cu(tpoen)]2+配位,而2是环上的MoO4四面体上的端氧原子与[Cu(tpoen)]2+配位.1和2通过[δ-Mo8O26]4-端氧与水分子之间的氢键作用,分别形成二维网状结构和一维带状链.此外,还研究了2种异构体的热稳定性和电化学性质.Two [δ-Mo8O26]^4-supported isomers, [{ Cu （tpoen） } 2 Mo8 O26 ] · 2H2O （ 1 · 2H2 O） and {Cu（tpoen） }2MosO26-] · 3H2O（2 · 3H2 O）, have been synthesized under the hydrothermal condition and their structures are determined by single-crystal X-ray diffraction. Complexes 1 and 2 are composed of Cu（ Ⅱ ） complexes supported by[δ-Mo8O26]^4-anions and they are linked-isomers, [δ-Mo8O26]^4- anions are coordinated to Cu（Ⅱ） ions by utilizing terminal oxygen atoms of MoO6 octahedra on Mo6-ring in 1, but for 2,by terminal oxygen atoms of MoO4 tetrahedra. Through hydrogen-bonding interactions between the terminal oxygen atoms of [δ-Mo8O26]^4- anions and the water molecules, a 2D network and a 1D chain are formed in 1 and 2, respectively. In addition, their thermal stability and the electrochemical properties have been studied.

关 键 词：多金属氧酸盐 钼氧阴离子 水热合成 晶体结构 

分 类 号：O614.121[理学—无机化学]