COMPLEX OF NICKEL (II) ION WITH TRYPTOPHAN AS A HOMOGENEOUS CATALYST IN THE DECOMPOSITION REACTION OF CUMENE HYDROPEROXIDE IN AQUEOUS SOLUTION

Authors

  • Gevorg S. Grigoryan Chair of Physical and Colloids Chemistry, YSU, Armenia

DOI:

https://doi.org/10.46991/PYSU:B/2021.55.1.118

Keywords:

nickel (II) ion, amino acid, tryptophan, complex, cumene hydroperoxide, catalytic decay, kinetics

Abstract

The formation of Ni2+:Tryptophan (Trp) 1:1 complex, which acts as a model catalyst for decomposition of cumene hydroperoxide (ROOH) in Ni2++Trp+ROOH+H2O system, has been confirmed via kinetic study in aqueous solution at pH>7. The kinetic expression of a single catalytic decomposition reaction of ROOH under the influence of [NiTrp]+ complex was brought out. The temperature dependence of the effective rate constant of ROOH decay (Keff=Kcat[Ni2+]0[Trp]0=const) in the temperature range from 323 to 343 K can be expressed by Arrhenius equation (Eeff is in kJ/mol):  Keff=(1.87±0.02)·106exp[–(49.8±0.3)/RT], min –1.

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Published

2021-08-30

How to Cite

Grigoryan, Gevorg S. 2021. “COMPLEX OF NICKEL (II) ION WITH TRYPTOPHAN AS A HOMOGENEOUS CATALYST IN THE DECOMPOSITION REACTION OF CUMENE HYDROPEROXIDE IN AQUEOUS SOLUTION”. Proceedings of the YSU B: Chemical and Biological Sciences 55 (2 (255):118-24. https://doi.org/10.46991/PYSU:B/2021.55.1.118.

Issue

Vol. 55 No. 2 (255) (2021)

Section

Chemistry

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Copyright (c) 2021 Proceedings of the YSU

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