Hydrolysis kinetics of p-nitrophenylpicolinate catalyzed by schiff base Mn(III) complexes in Gemini 16-2-16 micellar solutiony |
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| Authors: | Bin Xu Weidong Jiang Jin Zhang Guangyin Fan Jianzhang Li |
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| Institution: | (1) Key Laboratory of Green Chemistry & Technology, School of Chemistry and Pharmaceutical Engineering, Sichuan University of Science & Engineering, Sichuan Zigong, 643000, China;(2) Department of Chemistry and Environment Science, Chongqing University of Arts and Science, Chongqing Yongchuan, 402160, China;(3) College of Chemistry and Chemical Engineering, West China Normal University, Sichuan Nanchong, 637002, China |
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| Abstract: | Two mono-Schiff base Mn(III) complexes (MnL2Cl, L=L1 and L2) were synthesized and employed as artificial hydrolases in catalyzing the hydrolysis of p-nitrophenylpicolinate (PNPP) in
Gemini 16-2-16 micellar solution. The effect of different micelles and their complex structures on the catalytic hydrolysis
of PNPP is discussed in detail. The observations showed that MnL22Cl exhibited higher catalytic activity over MnL12Cl under a comparable condition, which confirmed that an open active centre is essential for modulating the activities of
the two enzyme mimics. Moreover, under the conditions employed, hydrolytic rates of PNPP induced by these Mn(III) complexes
were faster in Gemini 16-2-16 micelles than that in the micellar solution of cetyltrimethylammonium bromide (CTAB), a conventional
analogue of Gemini 16-2-16.
Electronic Supplementary Material Supplementary material is available for this article at and is accessible for authorized users. |
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| Keywords: | PNPP Hydrolysis kinetics Steric hindrance Gemini 16-2-16 micelle Schiff base Mn(III) complexes |
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