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An Experimental and Computational Study of the Thermal Oxidation of C_6H_5NO by NO_2

机译:NO_2热氧化C_6H_5NO的实验和计算研究

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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, C_6H_5NO + NO_2 → C_6H_5NO_2 + NO, k_1 = (9.62 ± 0.35) * 10~(10) exp[-(6500 ± 144)/T] 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.
机译:通过热解/傅里叶变换红外光谱法和混合密度泛函理论计算,对二氧化氮热氧化亚硝基苯的动力学和机理进行了实验研究。在373-473 K温度范围内测得的实验数据产生了直接O交换反应的双分子速率常数C_6H_5NO + NO_2→C_6H_5NO_2 + NO,k_1 =(9.62±0.35)* 10〜(10)exp [ -(6500±144)/ T] cm〜3 mol〜(-1)s〜(-1),可以用能垒,E_1〜0 = 10.0±0.3 kcal的过渡态理论来令人满意地解决。摩尔〜(-1)在0 K.

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