Non-Arrhenius temperature dependence of the rate constant for the H + H2S reaction

作者: Masabumi Yoshimura , Mitsuo Koshi , Hiroyuki Matsui , Kenshu Kamiya , Hideaki Umeyama

DOI: 10.1016/0009-2614(92)85124-S

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摘要: Abstract The rate constants for the H(2S) + H2S reaction were measured behind reflected shock waves (T = 1053–2237 K) and at 293 K, in which atoms generated by ArF-laser photolysis of H2S. resulting constant, k (1.96 ± 0.7) × 10−17T2.1±0.3 exp[− (352 84) / T] cm3 molecule−1 s−1, showed a strong non-Arrhenius dependence on temperature. This is explained conventional transition-state theory combined with quantum-mechanical calculation transition state PMP4(SDTQ)6-311G**//MP2/6-31G** level.

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