6533b850fe1ef96bd12a82d0

RESEARCH PRODUCT

Kinetics of the formation reactions of trichloro- and tribromomethyl hypohalites and alcohols in the gas-phase: Theoretical study

Jerzy LeszczynskiAndrzej NowekJerzy T. JodkowskiKatarzyna Brudnik

subject

Reaction rate constantComputational chemistryChemistryAb initio quantum chemistry methodsKineticsThermochemistryGeneral Physics and AstronomyPhysical chemistryMoleculePhysical and Theoretical ChemistryAtmospheric temperature rangeAdiabatic processGas phase

description

Abstract The CX3OY molecules (X = Cl, Br and Y = H, F, Cl, Br) can be formed in the atmosphere by the recombination CX3 + OY and CX3O + Y reactions. In the present study the results of a theoretical analysis of the kinetics and thermochemistry of this class of reactions are performed. The molecular properties of the reactants and products were derived from ab initio calculations. The high-pressure limiting rate constants for the recombination reactions were evaluated using a version of the statistical adiabatic channel model. The kinetic equations derived in this study allow a description of the kinetics of the reactions under investigation in the temperature range of 200–400 K.

https://doi.org/10.1016/j.cplett.2006.12.079