Synthesis and structural characterizations of three carbonyl(α-diimine)hydrido(triphenylphosphine)ruthenium(II) complexes with derivatives of 1,10-phenanthroline.

Three new ruthenium(II) polypyridyl complexes containing α-diimine ligands, namely, carbonylhydrido(1,10-phenanthroline-κ 2 N,N)bis(triphenylphosphine-κP)ruthenium(II) hexafluorophosphate, [RuH(C 12 H 8 N 2 )(C 18 H 15 P) 2 (CO)]PF 6 , carbonylhydrido(2,9-dimethyl-1,10-phenanthroline-κ 2 N,N)bis(triphenylphosphine-κP)ruthenium(II) hexafluorophosphate, and carbonylhydrido(4,7-dimethyl-1,10-phenanthroline-κ 2 N,N)bis(triphenylphosphine-κP)ruthenium(II) hexafluorophosphate, both [RuH(C 14 H 12 N 2 )(C 18 H 15 P) 2 (CO)]PF 6 , were synthesized and characterized by spectroscopic and X-ray diffraction methods. In these complexes, the ruthenium(II) ion adopts a distorted octahedral geometry. There are no intermolecular hydrogen bonds in the crystal structures of the analysed complexes and Hirshfeld surface analysis showed that the H...H contacts constitute a high percentage, close to 50%, of the intermolecular interactions.