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Studies on Hydrolysis of P-Nitrophenyl Picolinate by Unsymmetrical Bis-Schiff Base Manganese Complexes with Aza-Crown Ether or Morpholino Pendants

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Abstract:

The unsymmetrical bis-Schiff base manganese complexes with either benzo-10-aza-crown ether pendants ( MnL1Cl, MnL2Cl) or morpholino pendant (MnL3Cl,MnL4Cl) have been employed as models for hydrolase by studying the hydrolysis reactions of p-nitrophenyl picolinate (PNPP). The effects of complex structures, reaction pH and reaction temperature on the rate of PNPP hydrolysis have been investigted. All four complexes exhibit high catalytic activity and the rate increases with pH increasing at 25 oC. The complexes of ligands containing a crown ether group exhibit higher catalytic activities than the non-crown analogues.

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Periodical:

Applied Mechanics and Materials (Volume 343)

Pages:

65-68

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.343.65

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Online since:

July 2013

Authors:

Xiang Zheng, Jian Zhang Li, Sheng Tian Huang, Zhu Zhu Yang, Wei Hu

Keywords:

Benzo-10-Aza-Crown Ether, Mimic Hydrolase, Picolinate Hydrolysis, P-Nitropheny, Unsymmetrical Bis-Schiff Base Complexes

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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