Article,

First-principles theory for the H + CH₄ → H₂ + CH₃ reaction

, , and .
Science (80-. )., 306 (5705): 2227–2229 (2004)
DOI: 10.1126/science.1104085

Abstract

A full-dimensional quantum dynamics simulation of a hydrogen atomwith methane on an accurate ab initio potential energy surfacereported. Based on first-principles theory, thermal rate constantspredicted with an accuracy comparable to (or even exceeding)precision. The theoretical prediction is within theof the significantly varied experimental rate constants reporteddifferent groups. This level of accuracy has previously been achievedfor smaller, three-or four-atom reactive systems. Comparisonclassical transition state theory confirms the importance ofmechanical tunneling for the rate constant below 400 kelvin.

Tags

Users

  • @theochem

Comments and Reviews