Polarities and anisotropic electron polarisabilities of neutral ligands

Abstract

Dipole moments and molar Kerr constants are reported for the molecules Me₃MX (M = P or As, and X = lone pair, O, or S) as solutes in dioxan and in benzene. The results are analysed to provide quantitative estimates of the anisotropic electron polarisabilities for each of these neutral ligands. The parameters so obtained are potentially of value in studies of metal–ligand interactions. Evidence is presented also of stereospecific Me₃MX,C₆H₆ complex formation in the aromatic solvent.