CATALITIC INFLUENCE OF COBALT (II) ON THE KINETICS OF CUMENE HYDROPEROXIDE METHIONINE REACTION IN AQUEOUS SOLUTIONS

Authors

  • G. S. Grigorian Chair of Inorganic Chemistry, YSU, Armenia
  • G. G. Petrosyan Chair of Inorganic Chemistry, YSU, Armenia
  • E. Ya. Vardanian Chair of Inorganic Chemistry, YSU, Armenia
  • S. K. Grigoryan Chair of Inorganic Chemistry, YSU, Armenia

DOI:

https://doi.org/10.46991/PYSU:B/2008.42.3.112

Keywords:

cumene hydroperoxide, cobalt, IR spectroscopy, kinetic law

Abstract

The complexformation of methionine (Met) with cobalt ion in aqueous solutions has been investigated by IR spectroscopy and kinetic methods. It has been shown that two types: 1:1 and 2:1 complexes are formed between the ligande and metal ion. In the system 1:1 complex predominates, which have catalytic activity on the cumene hydroperoxide (CHP) decomposition in aqueous solutions, where a reaction between Met and CHP takes place. The kinetic law of hydroperoxide (ROOH) catalytic decomposition at the presence of [CoMet]2+ complex is found: W0 = –d[ROOH]/dt = Kcat[Co2+]0[Met][ROOH]0 = Keff[ROOH]0. Temperature dependence of Keff  is expressed by the following equation: Keff = (1.12 ± 0.05)105exp[(–43000 ± 300)/RT], min–1.

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Published

2023-10-11

How to Cite

Grigorian, G. S., G. G. Petrosyan, E. Ya. Vardanian, and S. K. Grigoryan. 2023. “CATALITIC INFLUENCE OF COBALT (II) ON THE KINETICS OF CUMENE HYDROPEROXIDE METHIONINE REACTION IN AQUEOUS SOLUTIONS”. Proceedings of the YSU B: Chemical and Biological Sciences 42 (3 (217):112-17. https://doi.org/10.46991/PYSU:B/2008.42.3.112.

Issue

Vol. 42 No. 3 (217) (2008)

Section

Chemistry

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