IR, PMR and Ligand Field Spectral Studies on Ti(III), Mn(III), Cr(III), Sb(III) and Bi(III) Complexes of Sulphur and Selenium Ligands

Abstract

Dibenzyl sulphide (DBS) and dibenzyl selenide (DBSe) form stable complexes with Ti(III), Mn(III), Cr(III), Sb(III) and Bi(III) ions having general formula [ML₃Cl₃] (M = Ti, Mn, Cr; L = DBS/DBSe), [ML₂Cl₃] (M = Sb and Bi) and [TiL₂(Py)₂Cl₂]Cl. Ti(III), Cr(III) and Mn(III) forms mer-octahedral and Sb(III) and Bi(III) forms distorted octahedral structure in which one of the corners is occupied by inert pair. Bis-ligand [TiL₂(Py)₂Cl₂]Cl complexes have trans position of ligand in octahedral structure. The IR, UV-vis and ¹H NMR spectral data are in good agreement with assigned structure.