Carbonylbis(triphenylphosphane-κP)(η2-1-vinylpyrrolidin-2-one-κO)ruthenium(0)

Abstract

The 1-vinyl­pyrrolidin-2-one ligand in the title compound, [Ru(C6H9NO)(C18H15P)2(CO)], coordinates to the Ru0 atom with the olefin double bond and the ketone O atom. The Ru0 atom adopts a distorted trigonal–bipyramidal coordination geometry, with the C O ligand and the ketone O atom occupying the axial positions. The two triphenyl­phosphane ligands are cis to each other. The olefinic C=C bond is almost coplanar with the Ru0 atom and the two P atoms (maximum deviation of 0.0516 Å from the mean plane defined by the five constituent atoms). The coordinated C=C bond has a length of 1.449 (3) Å, which is significantly longer than that of a free C=C bond (1.34 Å). There are two C—H⋯π inter­actions involving neighbouring phenyl rings in the mol­ecule. In the crystal, mol­ecules are linked via two further C—H⋯π inter­actions.