Syntheses and crystal structures of ruthenium complexes with bidentate salicylaldiminato and dithiophosphato ligands

Abstract Treatment of the bidentate Schiff base 2-[(2,6-diisopropyl-phenylimino)-methyl]-phenol (HL1) with one equivalent of (Et 4 N)[RuCl 4 (MeCN) 2 ] in the presence of triethylamine afforded (Et 4 N)[RuCl 3 ( κ 2 - N , O -L1)(MeCN)] ( 1 ), which reacted with two equivalents of K[S 2 P(O i Pr) 2 ] to produce a neutral ruthenium(III) complex [Ru( κ 2 - N , O -L1){ η 2 -S 2 P(O i Pr) 2 } 2 ] ( 2 ) bearing both salicylaldiminato and dithiophosphato ligands. Reactions of the bidentate Schiff bases 2-[(3-chloro-phenylimino)-methyl]-phenol (HL2) and 2-[(2,4,6-trimethyl-phenylimino)-methyl]-phenol (HL3) with one equivalent of [Ru(CO) 2 Cl 2 ] in the presence of triethylamine led to formation of the corresponding anionic ruthenium(II) carbonyl complexes (Et 3 NH)[RuCl 2 ( κ 2 - N , O -L2)(CO) 2 ] ( 3 ) and (Et 3 NH)[RuCl 2 ( κ 2 - N , O -L3)(CO) 2 ] ( 4 ). The molecular structures of complexes 2 – 4 have been determined by single-crystal X-ray diffraction.