Studies on Some Diorganotellurium (IV) Complexes with a N4 Donor Macrocyclic Ligand; 1,4,8,11-teteraazatetradeca 5,7,12,14-tetraene

Abstract

Eight complexes of diorganotellurium(IV) with general formulae [R₂Te(L)] X₂ where R ═ phenyl or methyl and L ═ 1, 4, 8, 11 tetraazatetradeca 5,7, 12, 14 tetraene and X ═ Cl–, ClO₄–, NO₃–, BF₄– have been prepared and their structures have been assigned on the basis of elemental analyses, molar conductance and spectral studies. The macrocycle, which is a N₄ donor is found to behave as tridentate in nature, coordinating to organotellurium{IV) through only three of its nitrogens as confirmed by ir and ¹H nmr data. The resulting complexes are thus assigned distorted octahedral geometries.