Cationic carbonyl complexes of ruthenium(II) containing 2,2′-bipyridyl or 1,10-phenanthroline

Abstract

Prolonged reflux of RuCl₃·xH₂O with stoicheiometric quantities of 2,2′-bipyridyl (bipy) or 2,2′ : 6′,2″-terpyridyl (terpy) produces [RuCl(CO)(bipy)₂]Cl and [RuCl₂(CO)(terpy)] respectively. The complexes [RuCl(CO)(N–N)₂]Cl [N–N = bipy or 1,10-phenanthroline (phen)] can also be prepared by carbonylation of [RuCl₂(N–N)₂] in refluxing methanol. Treatment of [RuCl₂(N–N)₂] with AgSbF₆ under 3 atm CO affords [Ru(CO)₂(N–N)₂][SbF₆]₂.The spectroscopic properties of these compounds are briefly discussed.