Abstract:
The complexes of vanadium (4) oxydichloride with tetrahydrofuran, 1, 2 - dimethoxyethane, pyridine and picolines were prepared having general formulae VOCI2 L2., VOCI2L" AND VOCI2L2', L" (here L'= tetrahydrofuran, and L" = 1, 2-dimethoxyethane, pyridine or picoline). The infrared spectra of complexes were determined in nujol and hexachlorobutadiene (HCB) mull and assignments of vanadium - oxygen double bond ?(V=0), vanadium - oxygen single bond v(V-0), vanadium – nitrogen ?(V-N), and vanadium - chlorine v(V-C1) stretching vibrations were made. The electronic spectra of complexes were determined in dimethoxyethane and toluene solution. The λmax in electronic spectra of the complexes was shifted to longer wavelength by less polar solvent. This red shift in the λmax was discussed by considering that the dipole moment of the complexes was changed during transition. The possible structure formations of the complexes were proposed.
Page(s):
75-80
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Scientific and Industrial Research, Volume: 28, Issue: 2, Year: 1985