配合物[Co(qina)_2(DMSO)_2]的结构及其对乙酸-1-萘酯水解的催化研究  

Crystal Structure of Complex [Co(qina)_2(DMSO)_2] and Its Catalysis for 1-Naphthyl Acetate Hydrolysis

作　　者：高恩君[1] 王克华[1] 于影[1] 尹洪喜[1] 孙亚光[1] 

机构地区：[1]沈阳化工学院配位化学研究室,沈阳110142

出　　处：《化学学报》2007年第16期1612-1616,共5页Acta Chimica Sinica

基　　金：辽宁省自然科学基金(No.20052014);沈阳化工学院基金资助项目.

摘　　要：合成了配合物[Co(qina)2(DMSO)2]单晶,其中,qina-为喹哪啶酸根,DMSO为二甲基亚砜.配合物为单斜晶系,P2(1)/C空间群,2个qina-配体以氮原子和氧原子与Co(II)离子螯合配位,2个DMSO以氧原子与Co(II)离子轴向配位,形成规则的八面体构型配合物,分子之间存在π-π堆积弱相互作用.该配合物可显著提高乙酸-1-萘酯的水解速率,在配合物浓度和萘酯浓度各为1.0×10-4和3.0×10-5mol·L-1条件下,酯的水解速率提高460倍.　The single crystal complex [Co（qina）2（DMSO）2]（Hqina=quinaldinic acid）was synthesized,which belongs to monoclinic system with space group P2（1）/C.Two qina ligands chelate a cobalt（Ⅱ）ion by O and N atoms and two DMSO ligands coordinate a cobalt（Ⅱ）ion by two O atoms at an axis.The complex formed inerratic octahedron configuration,and π-π stacking weak interaction was observed between the molecules.1-Naphthyl acetate hydrolysis velocity was remarkably enhanced by the title complex,at the concentrations of 1-naphthyl acetate and the title complex being 1.0×10^-4 mol·L^-1 and 3.0×10^-5 mol·L^-1,respectively.The enhancement multiple was 460.

关 键 词：配合物 结构 钴(Ⅱ)离子 喹哪啶酸 催化活性 

分 类 号：O641.4[理学—物理化学]