Deoxygenation reactions of nitrous oxide assisted by oriented external electric field

Abstract

Due largely to the high stability and the potential ozone-depleting, the transformation of greenhouse gas nitrous oxide has gained much attentions. In present paper, a new insight into the deoxygenation of nitrous oxide with silane was reported by using oriented external electric field (OEEF) as a catalytic strategy. When the OEEF was employed, the reaction barrier of deoxygenation was marvelously decreased as it was oriented along the positive NO/OSi bond-axis. Especially the field strength is 300 × 10⁻⁴ a.u., the differences are up to 22.4/18.3 kcal mol⁻¹ as compared with that of nonfield. In addition, once the H atom in SiH₄ was replaced by methyl, two reaction modes were obtained, in which the deoxygenation process was easier when the N₂O captured the H atom attached to the Si atom, not attached to the C atom. Further, the solvent effects of deoxygenation reaction were also considered, but with a weak influence were obtained.