Formation of HC ReH3 in methane activation by rhenium atoms: Observation of the elusive methylidyne C-H stretching absorption

摘要

HC ReH3 is formed in the reaction of Re atoms with CH4 in excess argon. The insertion complex is generated, and two alpha-hydrogen migrations follow to produce the trihydrido methylidyne complex HC ReH3, which has a C-s structure, a C-H stretching absorption at 3102 cm(-1), a C Re stretching mode at 1049 cm(-1), and a very strong Re-H stretching absorption at 1804 cm(-1).