Characterisation of vanadium (III) complexes presenting a bipyramid-trigonal geometry

The present study describes the synthesis of the solid complex compounds VC l3L2 with differents ligands and their characterisation by IR and electroni c spectroscopie, elementary chemical analysis and differential thermic anna lysis. An advanced study about the chemical nature bonds on the complex com pounds has been realised by usig of the field ligands cellular model (CLF). The presence of free three-orbital d for Vanadium ion V3+ (d(2)) lead to t he tansition of an electron pair sp(2) hibrid atoms. In this case, a covale nt-coordinating bond: V3+ <-- .. E (E = N, P, As) can be resulting. The exp erimenal results show that all the complex compounds obtained present a D-3 h, geometry.