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The prepartion and spectroscopic properties of some complexes formed between vanadium (4) oxydichloride and organic ligands
Author(s)
Muhammad A. Hamid Chemistry Department, University of Manchester, Institute of Science Technology, Manchester, England, UK
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.
Publication Details
Page(s) 75-80
DOI DOI not available
Published Journal: Pakistan Journal of Scientific and Industrial Research, Volume: 28, Issue: 2, Year: 1985
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