KINETICS OF CUMENE HYDROPEROXIDE CATALYTIC DECAY IN AQUEOUS SOLUTION IN THE PRESENCE OF COPPER ION(II) AND TRYPTOPHAN

Authors

  • G.S. Grigoryan Chair of Physical and Colloids Chemistry, YSU, Armenia
  • S.K. Grigoryan Chair of Inorganic and Analytic Chemistry, YSU, Armenia
  • D.A. Martiryan Chair of Nuclear Physics, YSU, Armenia

DOI:

https://doi.org/10.46991/PYSU:B/2019.53.2.075

Keywords:

amino acid, tryptophan, complex, cumene hydroperoxide, catalytic decay, kinetics

Abstract

The formation of Cu2+ : Tryptophan (Trp) = 1 : 1 complex, which acts as a model catalyst for decomposition of cumene hydroperoxide (ROOH) in H2O+Cu2++Trp+ROOH system, has been confirmed via kinetic study in aqueous solution at pH > 7. Kinetic equation of single catalytic decomposition reaction of ROOH under the influence of [CuTrp]+ complex was derived: W0= –d[ROOH]0/dt=Kcat[Cu2+]0[Trp]0[ROOH]0= Keff [ROOH]0. The temperature dependence of the effective rate constant Keff (Keff = Kcat[Cu2+]0[Trp]0 = const) for ROOH decay in the temperature range from 323 to 343 K can be expressed by Arrhenius equation (Keff is in kJ/mol): Keff =(7.45 ± 0.02) ·106exp[–(56.5 ± 0.2)/RT] 1/min.

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Published

2019-07-15

How to Cite

Grigoryan, G.S., S.K. Grigoryan, and D.A. Martiryan. 2019. “KINETICS OF CUMENE HYDROPEROXIDE CATALYTIC DECAY IN AQUEOUS SOLUTION IN THE PRESENCE OF COPPER ION(II) AND TRYPTOPHAN”. Proceedings of the YSU B: Chemical and Biological Sciences 53 (2 (249):75-80. https://doi.org/10.46991/PYSU:B/2019.53.2.075.

Issue

Vol. 53 No. 2 (249) (2019)

Section

Chemistry

License

Copyright (c) 2019 Proceedings of the YSU

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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