互为立体异构的大环多胺铜(Ⅱ)配合物催化羧酸酯水解的比较研究  

Comparative kinetics of carboxylic ester hydrolysis catalyzed by Cu(Ⅱ) complexes of two stereomeric macrocyclic polyamine ligands

作　　者：杜守德[1] 黄忠[1] 田玉华[2] 寇兴明[2] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900 [2]四川大学化学学院,四川成都610064

出　　处：《化学研究与应用》2006年第11期1307-1312,共6页Chemical Research and Application

摘　　要：合成并表征了互为立体异构的四氮杂大环多胺配体及其铜(Ⅱ)配合物。在B rij35胶束溶液中,比较研究了配合物催化羧酸酯(2-吡啶甲酸对硝基苯酚酯PNPP)水解的动力学,探讨了导致其催化活性差异的可能原因,提出了可能的催化反应的机理。Two Cu（Ⅱ） complexes of two stereomeric tetraaza macrocyclic polyamine ligands were synthesized and characterized. In the presence of Brij35, the comparative kinetic investigation of the hydrolysis of p - nitrophenyl picolinate （PNPP） catalyzed by two macrocyclic polyamine complexes at 30℃ were reported. The possible reasons for the difference in catalytic activities of two complexes for the hydrolysis of p - nitrophenyl picnlinate （PNPP） were discussed in detail and the catalytic mechanisms were proposed.

关 键 词：大环多胺 铜配合物 羧酸酯 水解 催化动力学 

分 类 号：O657.7[理学—分析化学]