SPECTROSCOPIC AND MAGNETOCHEMICAL INVESTIGATION OF OXOVANADIUM(IV) 5-CHLOROSALICYLALDIIMINES

Abstract

Abstract The oxovanadium (IV) complexes of 5-chlorosalicylaldehyde, VO(5-Clsal)2, and its aliphatic diamine derivatives with a general formula, VO[OC6ClH3CH=N‒CR1R2(CH2) n-1 -N=CHC6ClH3O] where n=2 (R1=R2=H or CH3) and n=3–5 (R1=R2=H), have been prepared. Their spectroscopic and magnetic properties suggest that the complexes (1–3; n=2, R1=R2=H or CH3) and (6; n=5, R1=R2=H) are five-coordinate, while VO(5-Clsal)2 and complexes (4 and 5; n=3 and 4, R1=R2=H) are likely to be six-coordinate and, presumably polymeric.