摘要
本文合成了NNN'N'-四(2-羟乙基)-13-间甲苯二胺。在30℃,pH7.20的条件下,研究了该配体与CeⅢ形成的金属配合物对双对硝基苯酚磷酸酯(BNPP)的催化水解反应,探讨了阳离子表面活性剂CTAB和非离子表面活性剂Brij35对催化水解反应的影响,建立了催化反应的动力学数学模型,获得了催化水解反应相应的热力学和动力学参数。实验结果表明,配合物中活化的羟基作为亲核物种对磷酸酯有强的亲核反应能力,能有效地促进BNPP的水解。本文同时还研究了pH对BNPP水解反应速度的影响,获得了酸离解常数。
N,N,N',N'-(2-hydroxylethyl)-1,3-benzyldiamine was synthesized in this paper. The hydrolysis of bis(nitrophenyl)phosphate(BNPP) catalyzed by its Ce(Ⅲ) complex in presence and absence of surfactants CTAB and Brij35 was studied. The kinetic mathematical model for the kinetic and thermodynamic parameters was also developed in this paper. The results indicated that the above complex dramatically accelerated the hydrolysis of BNPP and the activated hydroxyl group of the ligand is effective nucleophilic species.
出处
《乐山师范学院学报》
2004年第5期57-62,共6页
Journal of Leshan Normal University
基金
四川省科技厅应用研究资助课题(01GY051-63)
四川省教育厅重点资助课题(01LA52)
乐山师院资助课题
