Synthesis of Two Schiff Base Transition Metal Complexes Bearing Morpholine Side Chains and Kinetics of PNPP Catalytic Hydrolysis in Brij35 Micelle |
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| Authors: | Bin Xie Xue‐Song Feng Chun‐Xiao Zhang Xian‐Cheng Zeng |
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| Institution: | 1. Department of Chemistry , Sichuan University of Science &2. Engineering , Sichuan Zigong, P. R. China;3. Chongqing Jiao Tong University , Chongqing, P. R. China;4. Faculty of Chemistry , Sichuan University , Chengdu, P. R. China |
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| Abstract: | Two Schiff base transitional metal complexes bearing morpholine side chains were synthesized and characterized, and were used as a simulative hydrolase in the catalytic hydrolysis of p‐nitrophenyl picolinate (PNPP) in this article. A mechanism of PNPP catalytic hydrolysis in the Brij35 micellar solution was proposed and supported by the results of the spectral analysis and the kinetic calculation. The kinetic model of PNPP catalytic hydrolysis was studied. The some kinetic and the thermodynamic constants on the catalytic reaction were calculated. The results of the study show that the metallomicelle made up of the Schiff base transitional metal complexes and Brij35 micelle revealed a good catalytic activity in PNPP catalytic hydrolysis; the rate of the PNPP catalytic hydrolysis is increased following the increase of the pH values in the buffer solution and affected by the polarization action of metal ion of complex. |
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| Keywords: | Synthesize metallomicelle simulative hydrolase kinetics p‐nitrophenyl picolinate |
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