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ABSTRACT
Several hexa-coordinated ruthenium(II) carbonyl complexes of the type [Ru(CO)(B)(L)] (B=PPh3, pyridine (py), piperidine (pip) or morpholine (morph); H2L=tetradentate Schiff bases) have been prepared by the reactions of [RuHCl-(CO)(PPh3)2(B)] (B=PPh3 or py or pip or morph) with appropriate Schiff bases having the donor groups O,N viz., o-hydroxyacetophenoneethylenediimine, H2(o-hyacen); o-hydroxyacetophenonepropylenediimine, H2(o-hyacpn); o-hydroxyacetophenonetetramethylenediimine, H2(o-hyactn), and o-hydroxyacetophenone-ortho-phenylenediimine, H2(o-hyacopn), in 1:1 molar ratio. The complexes have been characterised on the basis of elemental analyses and spectral (IR, electronic, 1H and 31P NMR) data. The antibacterial activities of these new complexes were also tested.