金属-糖胺配合物的合成,光谱表征及催化酯类水解的动力学研究  

Synthesis and Spectral Analysis of Metal-N-Glycoside Complexes and Studies of Catalyzed Ester Hydrolytic Kinetics

作　　者：张炜[1] 江涛[1] 任素梅[1] 张忠伟[1] 管华诗[1] 

机构地区：[1]中国海洋大学海洋药物与食品研究所,山东青岛266003

出　　处：《光谱学与光谱分析》2005年第6期975-978,共4页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金(20371043);国家"973"项目基金(2003CB716400)资助

摘　　要：合成了4种新的糖胺 金属配合物,分别为[Ni(HL) (H2 O) 2 ]2 + Cl2 ·CH3OH·2H2 O ,[Cu(HL) ]2 + Cl2 ·CH3CH2 OH·3H2 O ,[Zn(HL) ]2 + Cl2 ·H2 O ,[Co(HL) (H2 O) (OH) ]2 + Cl2 ·CH3OH·2H2 O (HLN ,N′ 二βD 葡萄糖基乙二胺) ,并用元素分析、红外、紫外、核磁共振氢谱对其结构进行了表征。结果表明,Ni(Ⅱ) ,Co(Ⅲ)配合物为八面体构型,而Cu(Ⅱ) ,Zn(Ⅱ)配合物为四面体构型。最后研究了其对对硝基苯吡啶甲酸酯(PNPP)催化水解的催化速率常数。Four new complexes of Ni( U), Cu( U), Zn( U) and Co(M) with HL(HL= N,N'-di-beta-D-glucosylethylenediamine) have been synthesized in methanol solutions. The compositions of the complexes determined by elementary analysis are [Ni(HL)(H2O)(2)](2+) Cl-2 center dot CH3 OH center dot 2H(2)O, [CU(HL)](2+) Cl-2 center dot CH3CH2OH center dot 3H(2)O, [Zn(HL)](2+) Cl-2 center dot H2O and [Co(HL) (H2O) (OH)](2+) Cl-2 center dot CH3OH center dot 2H(2)O respectively. They were also characterized by IR, UV and NA4R spectra which show that complexes of Ni( U) and Co( [U) have octahedral configuration, while complexes of Cu( U) and Zn( If) have tetralhedral configuration. The hydrolytic kinetics of p-Nitrophenyl picolinate(PNPP) catalyzed by these complexes in buffer solution was also studied spectrophotometrically.

关 键 词：金属-糖配合物 合成 光谱表征 水解动力学 

分 类 号：O629.1[理学—有机化学]