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

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.

How to Cite

“KINETICS OF CUMENE HYDROPEROXIDE CATALYTIC DECAY IN AQUEOUS SOLUTION IN THE PRESENCE OF COPPER ION(II) AND TRYPTOPHAN”. 2019. 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.

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