Hm. Lee et al., A cationic iridium complex bearing an imidazol-2-ylidene ligand as alkene hydrogenation catalyst, ORGANOMETAL, 20(6), 2001, pp. 1255-1258
The new cationic iridium carbene complex [Ir(cod)(py)(SIMes)]PF6 (2) has be
en synthesized by reaction of [Ir(cod)(py)(2)]PF6 with SIMes. Complex 2 is
an active hydrogenation catalyst capable of hydrogenating simple olefins at
roam temperature and atmospheric pressure of hydrogen.