Preparation and Structural Characterisation of Triaryl Metal(V) Complexes (M = As, Sb) of Tri-and Tetradentate Schiff Bases

Abstract

Hitherto unreported penta-coordinated triaryl-arsenic(V) complexes of Schiff bases of the general formula Ar₃AsL (Ar = C₆H₅, p-CH₃C₆H₄, p-ClC₆H₄, p-FC₆H₄ and C₆F₅; L = dibasic tri-and tetradentate ligands with ONO and ONNO systems) have been synthesised along with some triarylantimony complexes with similar tridentate ligands. The complexes, which are yellow crystalline solids, have been characterised by elemental analyses, IR, ¹H and ¹⁹F NMR spectral data sp³d and sp³d² hybridisation has been suggested for the arsenic and antimony derivatives, respectively, on the basis of spectral data.