Novel p-cymene-osmium(II) and -osmium(0) complexes: a ring ligand determining inter-vs. intra-molecular C–H addition
Abstract
The osmium(0) complex [(pc)Os(C2H4)PMe3][pc =η6-p-cymene (4-isoproltoluene)](7) has been prepared together with a group of neutral and cationic p-cymemeosmium(II) compounds; in contrast to [C6H6Os(C2H4)PMe3], the corresponding p-cymene complex (7) reacts with an excess of PM3 in benzene not by intra- but by inter-molecular C–H addition to form [OsH(C6H5)(PMe3)4].