Synthesis of novel ruthenium complexes containing bidentate imidazole-based ligands

Ruthenium(II) complexes containing the bidentate imidazole-based ligands (MeN₂H₂C₃)₂CO L¹, (MeN₂H₂C₃)₂CHOH L² and (MeN₂H₂C₃)₂CHL³ (where 1-MeN₂H₂C₃= 1-methylimidazol-2-yl), [Ru(PPh₃)₂H(CO)L¹]Cl 1, [Ru(PPh₃)₂H(CO)L²]Cl 2 and [Ru(PPh₃)₂H(CO)L³]Cl 3, were synthesized by the reaction of L¹–L³ with [Ru(PPh₃)₃H(Cl)(CO)] in toluene. The complexes were characterised by NMR spectroscopy and the crystal structures of [Ru(PPh₃)₂H(CO)L¹]BF₄ 4 and [Ru(PPh₃)₂H(CO)L²]OH 5 determined.5 page(s