Ligand assisted carbon dioxide activation and hydrogenation using molybdenum and tungsten amides

Abstract

Molybdenum and tungsten amides M(NO)(CO)(PNP) {M = Mo, 3a; W, 3b; PNP = (iPr₂PCH₂CH₂)₂N} can activate CO₂ at room temperature forming carbamate species M(NO)(CO)(PNP)(OCO) (M = Mo, 4a(trans); W = 4b(trans). Employing 3a,b stoichiometric hydrogenation of carbon dioxide could be demonstrated.