Effects of Various Schiff Base Ligands and Micelles on the Hydrolytic Kinetics of p-Nitrophenyl Picolinate |
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| Authors: | Bin Xu Junbo Zhong Jin Zhang Shengtian Huang Jianzhang Li |
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| Affiliation: | 1. Key Laboratory of Green Chemistry &2. Technology , School of Chemical and Pharmaceutical Engineering, Sichuan University of Science &3. Engineering , Sichuan Zigong, China;4. Department of Chemistry and Environment Science , Chongqing University of Arts and Science , Chongqing Yongchuan, China |
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| Abstract: | In this article, the effects of different micelles and Schiff base ligands on the hydrolytic kinetics of p-nitrophenyl picolinate (PNPP) were evaluated. The results reveal that the biggest rate enhancement for PNPP hydrolysis was given in Gemini 16-6-16 micellar solution relative to other four reaction media, that is, cetyltrimethylammonium bromide (CTAB), n-lauroylsarcosine sodium (LSS), polyoxyethylene (23) lauryl ether (Brij35) and pure buffer. Moreover, the hydrolytic rates of PNPP in other four media decreased in the order LSS > CTAB > Buffer > Brij35. The structural effects of Mn(III) catalysts clearly testify that a relatively open active site facilitates the formation of reactive substrate-catalyst complex. |
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| Keywords: | Complex structure hydrolysis kinetics micelles p-nitrophenyl picolinate |
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