Abstract Simple synthetic procedure, reaction of Os[P(C 6 H 5 ) 3 ] 2 (CO) 2 Cl 2 with 2-phenylpyridine (or other similar N∩CH chelating ligands) in boiling 2-(2-ethoxyethoxy)ethanol solution leads to Os[P(C 6 H 5 ) 3 ] 2 (CO)(N∩C − )Cl complexes. Structures of the obtained species have been elucidated by means of 31 P NMR and FT-IR techniques as well as elemental analysis data. The UV–vis absorption