Kinetic Studies on Hydrolysis of P-Nitrophenol Picolinate Mediated by Mono-Schiff Base Mn(III) Complexes as Synthetic Hydrolase-Reference-Cited by-同舟云学术

Kinetic Studies on Hydrolysis of P-Nitrophenol Picolinate Mediated by Mono-Schiff Base Mn(III) Complexes as Synthetic Hydrolase

Published:2006-01 Issue:1 Volume:31 Page:11-28
ISSN:1468-6783
Container-title:Progress in Reaction Kinetics and Mechanism
language:en
Short-container-title:Progress in Reaction Kinetics and Mechanism

Author:

Weidong Jiang¹²,Bin Xu¹,Jianzhang Li¹,Qi Lin²,Xiancheng Zeng²,Hua Chen²

Affiliation:

1. Department of Chemistry, Key Laboratory of Green Chemistry & Technology, Sichuan University of Science & Engineering, Sichuan Zigong 643000, P. R China

2. Key Laboratory of Green Chemistry & Technology(Sichuan University), Ministry of Education, Sichuan Chengdu 610064, P. R China; Organometal Homogeneous Catalytic Institute (Sichuan University), Sichuan Chengdu 610064, P. R China

Abstract

Three novel mono-Schiff base manganese(III) complexes (metal: ligand = 1 : 2) with benzoaza-15-crown-5 or morpholine pendant groups, were shown to promote the hydrolysis of p-nitrophenol picolinate (PNPP) under a series of experimental conditions. A mechanism for these catalysts is proposed in which the H2O molecule that hydrolyses the PNPP is deprotonated by the synergistic effect which results from central Mn(III) ion and oxygen atom located in the benzoaza-15-crown-5 or morpholine ring. The related kinetic model has been set up. The effects of structural differences of the listed complexes on the hydrolysis of PNPP have been discussed. The experimental results imply that the steric hindrance of side pendant groups is a primary factor for PNPP hydrolysis.

Publisher

SAGE Publications

Subject

Physical and Theoretical Chemistry

Link

http://journals.sagepub.com/doi/pdf/10.3184/007967406779133984

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