Synthesis and Structural Characterization of Mono-and Di-nuclear Zinc(Ⅱ) Coordination Compounds of Triphenylphosphoniopropionate

作     者：LISong-lin HOUJian-feng JIANGNing-yi MakThomasC.W. 

作者机构：DepartmentofChemistryTianjinUniversityTianjin300072P.R.China DepartmentofChemistryTheChineseUniversityofHongKongShatinNewTerritoriesHongKongP.R.China 

出 版 物：《Chemical Research in Chinese Universities》 (高等学校化学研究（英文版）)

年 卷 期：2005年第21卷第4期

页      面：391-395页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学] 

基　　金：SupportedbyagrantfromLiuHuiResearchCentreforAppliedMathematicsofNankaiUnivesityandTianjinUnversity(No.H10114) 

主　　题：Triphenylphosphoniopropionate Quaternary phosphonium betaine Mono-and Di-nuclear Zn(Ⅱ) coordination compounds Crystal structure 

摘      要：Two novel coordination compounds of Zn(Ⅱ) with Ph_3P+(CH_2)_2CO-_2(L), namely, [ZnL_4(H_2O)_2]·(ClO_4)_2·2H_2O(compound 1) and [Zn_2Cl_4(μ-L-O,O′)_2](compound 2), have been prepared. The single crystal X-ray structure analysis of these compounds indicates that in compound 1 the Zn(Ⅱ) atom is coordinated by four monodentate carboxylato groups on the equatorial plane and two aqua ligands occupy the axial coordination positions. The pendant oxygen atoms form strong hydrogen bonds with the aqua molecules which results in the stability of this structure. In compound 2, two Zn(Ⅱ) atoms are bridged by a pair of carboxylato groups, showing a skew-bridge mode, and thus enabling a long Zn(Ⅱ)…Zn(Ⅱ) separation. As we know, it is a dinuclear coordination compound with the longest Zn…Zn separation.