화학공학소재연구정보센터
Journal of Physical Chemistry A, Vol.106, No.12, 2903-2907, 2002
An experimental and computational study of the thermal oxidation of C6H5NO by NO2
The kinetics and mechanism for the thermal oxidation of nitrosobenzene by nitrogen dioxide have been studied experimentally by pyrolysis/Fourier transform infrared spectrometry and computationally by hybrid density functional theory calculations. The experimental data measured in the temperature range 373-473 K gave rise to the bimolecular rate constant for the direct O-exchange reaction, C6H5NO + NO2 -C6H5NO2 + NO, k(1) = (9.62 +/- 0.35) x 10(10) exp[-(6500 +/-144)/7] cm(3) Mol(-1) s(-1), which can be satisfactorily accounted for by the transition-state theory with the energy barrier, E-1(0) = 10.0 +/- 0.3 kcal mol(-1) at 0 K.