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KMID : 1059519930370060612
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Journal of the Korean Chemical Society
1993 Volume.37 No. 6 p.612 ~ p.617
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Synthesis and Characterization of Vanadium(Ⅲ) Complexes with N, P, O-donating Ligands(Ⅱ)
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Oh Sang-Oh
Lyou Eun-Young
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Abstract
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Some vanadium(Ⅲ) complexes have been prepared from the reaction of VCl3 with N, P, O-donating ligands and characterized by elemental analysis, 1H-NMR infrared and UV-Visible spectroscopy. 3,5-Lutidine, 1,2-phenylenediamine, 8-hydroxyquinoline, 9,10-phenanthrenequinone, triphenylphosphine, 1,2-bis(diphenylphosphino)ethane, 1,3-bis(diphenylphosphino)propane and 1,1'-bis(diphenylphosphino)ferrocene were chosen as coordinating ligands. Stretching frequency ν(V-Cl) of complexes appears) at 298∼367 cm-1, which show octahedral geometries. Stretching frequency of ν(V-X) (X = N, P, O) indicates that ligands are coordinated to vanadium(Ⅲ). Stretching frequency ν(C≡N) of acetonitrile in these complexes are characteristically shifted to about 70 cm-1 higher compared with that of a free ligand (2260 cm-1). Bending frequency of δ(C≡N) is also shifted to about 60 cm-1 higher compared with that of a free ligand (377 cm-1). Finally each vanadium(Ⅲ) complex showed the following formulation; [VCl3(L)2MeCN] or [VCl3(L-L)MeCN].
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