Synthesis and Characterization of Vanadium(Ⅲ) Complexes with N, P, O-donating Ligands(Ⅱ)

질소, 산소, 인 주개 리간드를 갖는 바나듐(Ⅲ) 착물의 합성과 특성 (제 2 보)

  • Oh Sang-Oh (Department of Chemistry, Kyungpook National University) ;
  • Lyou Eun-Young (Department of Chemistry, Kyungpook National University)
  • 오상오 (경북대학교 자연과학대학 화학과) ;
  • 류은영 (경북대학교 자연과학대학 화학과)
  • Published : 1993.06.20

Abstract

Some vanadium(III) complexes have been prepared from the reaction of VC$l_3$ with N, P, O-donating ligands and characterized by elemental analysis, $^1$H-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 ${\nu}g$(V-Cl) of complexes appears) at 298∼367 cm-1, which show octahedral geometries. Stretching frequency of ${\nu}g$(V-X) (X = N, P, O) indicates that ligands are coordinated to vanadium(III). Stretching frequency ${\nu}g(C{\equiv}N)$ of acetonitrile in these complexes are characteristically shifted to about 70 c$m^{-1}$ higher compared with that of a free ligand (2260 c$m^{-1}$). Bending frequency of $\delta(C{\equiv}N)$ is also shifted to about 60 c$m^{-1}$ higher compared with that of a free ligand (377 c$m^{-1}$). Finally each vanadium(III) complex showed the following formulation; [VC$l_3$(L)$_2$MeCN] or [VC$l_3$(L-L)MeCN].

Keywords

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