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Kinetics and mechanism of zinc(II), cadmium(II), and mercury(II) incorporation into meso tetrameta-tolueneporphyrin

✍ Scribed by Wen Juan Ruan; Zhi Ang Zhu; Hong Wei Chen; Zhi Hui Zhang; Yun Ti Chen

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 148 KB
Volume: 30
Category: Article
ISSN: 0538-8066
DOI: 10.1002/(sici)1097-4601(1998)30:4<277::aid-kin6>3.0.co;2-p

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✦ Synopsis

The kinetics of Zn(II), Cd(II), and Hg(II) incorporation into meso tetrameta-tolueneporphyrin (H 2 T(m-CH 3 )PP) in acetone have been studied by means of stopped-flow method. A unified reaction mechanism was proposed and the kinetic parameters were obtained by nonlinear least-square methods. The effect of ionic strength (I) on Cd(II)/H 2 T(m-CH 3 )PP was investigated. It has been found that there is a negative kinetic salt effect and the relationship of rate constants with ionic strength was obtained. Some solvent effects have also been investigated in this article.

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