[(mtan)Zn(μ-OH)Zn(mtan)](ClO_4)_3的晶体结构分析  

Analysis of Crystal Structure of [(mtan)Zn(m-OH)Zn(mtan)](ClO_4)_3

作　　者：夏军[1] 任化伟[1] 朱修亮[1] 朱海亮[1] 

机构地区：[1]武汉科技学院环境与化学工程系,湖北武汉430073

出　　处：《武汉科技学院学报》2003年第2期14-16,共3页Journal of Wuhan Institute of Science and Technology

基　　金：武汉科技学院资助项目(项目编号:023068; 023032).

摘　　要：标题化合物[(mtan)Zn(OH2)](ClO4)2 (1) (mtan = 5-甲基-1,5,9-三氮杂壬烷) 是在pH < 7 的乙腈水溶液中制取的,而在11 > pH 7的条件下,配合物1中的水分子配体很容易电离出质子,形成二聚体[(mtan)Zn(m-OH)Zn(mtan)](ClO4)3 (2)的产率很高。在13.5 > pH 11的范围内,溶液中就会产生 [(mtan)Zn(m-O)Zn(mtan)](ClO4)2 (3),X-射线单晶结构分析表明,化合物(2)由[(mtan)Zn(m-OH)Zn(mtan)]3+和三个ClO4-组成,晶体参数:单斜晶系空间群P2(1)/m,a轴 7.802(2), b轴 12.121(3),c轴 15.662(3) 牛琤 104.29(2)o,V 1435.3(6) 3。Zn(II)呈现稍微扭曲的四面体配位环境。The title complexes, [(mtan)Zn(OH2)](ClO4)2 (1) (mtan = 5-methyl-1,5,9-triazanonane) was prepared in aqua acetonitrile solution of pH < 7. One of the hydrogen atoms in the coordinated water molecule in (1)is very easy to dissociate in 11 > pH 7, forming the dimmer, [(mtan)Zn(m-OH)Zn(mtan)](ClO4)3 (2)in high yield. In the range of 13.5 > pH 11, dianion O-bridged compound [(mtan)Zn(m-O)Zn(mtan)](ClO4)2 (3) was isolated. X-ray single crystal structure determination reveals that (2)consists of a hydroxyl-bridged dinuclear cation and three perchlorate anions. The complex crystallizes in monoclinic space group P2(1)/m with a 7.802(2), b 12.121(3), c 15.662(3) ? b 104.29(2)o, V 1435.3(6) ?. The coordination geometry at each zinc(II) atom is a slightly distorted tetrahedron.

关 键 词：[(mtan)Zn(μ-OH)Zn(mtan)](C1O4)3 锌配合物 合成 晶体结构 羰基脱水酶 金属酶 

分 类 号：O614.241[理学—无机化学] Q55[理学—化学]