Synthesis and Structure of Vanadium-barium Complex of 2,4,6-Tripicolinato with 20-Member Macrocyclic Cavities  

作　　者：Yu Xia DIAO Yang TIAN Si Hui ZHAN Wen Xing ZHANG Xiu Ling JIAO Dai Rong CHEN 

机构地区：[1]School of Chemistry and Chemical Engineering,Shandong University,Jinan 250100

出　　处：《Chinese Chemical Letters》2003年第7期740-743,共4页中国化学快报(英文版)

基　　金：This project is supported by NNSF of China(60172003);Specialized Research Foundations of Shandong Province(11120106).

摘　　要：A new heteronuclear complex, dimer [(2-OH2)2Ba2(H2O)4][VO2(tpa)]24H2O (tpa: 2,4,6-tripicolinate trianion), was synthesized and structurally determined by X-ray diffraction technique where all hydrogen atoms have been located directly. The coordination geometry of V(V) ion is a distorted trigonal bipyrimid and that of Ba(II) ion is a capped square antiprism. One 2-O bridging bond and two hydrogen bonds act between the coordination geometries. A 1-D extended porous construction containing 20-member cavities is observed in the crystal.A new heteronuclear complex, dimer [(2-OH2)2Ba2(H2O)4][VO2(tpa)]24H2O (tpa: 2,4,6-tripicolinate trianion), was synthesized and structurally determined by X-ray diffraction technique where all hydrogen atoms have been located directly. The coordination geometry of V(V) ion is a distorted trigonal bipyrimid and that of Ba(II) ion is a capped square antiprism. One 2-O bridging bond and two hydrogen bonds act between the coordination geometries. A 1-D extended porous construction containing 20-member cavities is observed in the crystal.

关 键 词：Heteronuclear vanadium-barium complex SYNTHESIS cavity structure. 

分 类 号：O634[理学—高分子化学]