variational rrkm calculation of thermal rate constant for c–h bond fission reaction of nitro methane
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ID: 183085
2017
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Abstract
The present work provides quantitative results for the rate constants of unimolecular C–H bond fission reactions in the nitro methane at elevated temperatures up to 2000 K. In fact, there are three different hydrogen atoms in the nitro methane. The potential energy surface for each C–H bond fission reaction of nitro methane was investigated by ab initio calculations. The geometry and vibrational frequencies of the species involved in this process were optimized at the MP2 level of theory, using the cc-pvdz basis set. Since C–H bond fission channel is a barrierless reaction, we have used variational RRKM theory to predict rate coefficients. By means of calculated rate coefficients at different temperatures, the Arrhenius expression of the channel over the temperature range of 100–2000 K is k(T) = 5.9E19∗exp(−56274.6/T).
| Reference Key |
manesh2017arabianvariational
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|---|---|
| Authors | ;Afshin Taghva Manesh;Reza Solhnejad |
| Journal | Behavioural brain research |
| Year | 2017 |
| DOI |
10.1016/j.arabjc.2013.01.010
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| URL | |
| Keywords | Keywords not found |
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