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Affiliation of Author(s):化学工程学院

Teaching and Research Group:化学工程学院

Journal:Chem. Res. Chin Univ.

Funded by:国务院其他部门

Key Words:Coordination polymer；Aggregate of polyoxovanadate；Hydrotherm al synthesis；Networ

Abstract:A novel 12-ring network coordination polymer，[{[Cu(C4 N2H10)4]2H4V4O14} (denoted as QUST-4)，has been hydrothermally synthesized and structurally determined by X ray single-crystal difraction analysis．QUST-4 was crystallized in a monoclinic system with space group P21／n．The parameters of the unit cell are a=1.0497(2)nn，b= 1.6728(3)nm，c=1.2857(3)nm， b=94.14(3)，V=2.2517(8)nm，z=4，Dc= 1.841 Mg／m3，Rl=0.1071，and wR=0．2703．The largest diference peak and hole were 2284 an -1040 e/nm3，respectively．The SBU (secondary building unit)of QUST-4 was a new cycle-aggregate of polyoxovanadate cycle-[H4V4Ol4]42-，diferent from cycle．[V4Ol2]，which was condensed from two tetrahedral and two trigonal bipyramids via alternate arrangement．Cu(piper)4(piper=piperazine)group connected the cycle-[H4V4Ol4] anions to form the 12。ring network．The adjacent layers were linked by van der Walls forces．

First Author:Yafeng Li

Indexed by:Journal paper

Volume:22

Issue:6

Page Number:2

Translation or Not:no

Date of Publication:2006-12-13