Lewis acid and Lewis base behaviour of a tellurium(II) compound: a mercury(II) complex of a bis-telluride ligand with a 13-member macrocyclic chelate ring

Abstract

The structure of 1,6-bis-2-butyltellurophenyl-2,5-diazahexa-1,5-diene (1) reveals a weak tellurium–nitrogen interaction giving the tellurium atom an effective co-ordination number of 3; with HgCl₂, (1) forms the complex [HgCl₂·(1)] which is monomeric with four-co-ordinate mercury(II) bonded to two chlorine and two tellurium atoms, (1) thus forming a 13-membered chelate ring.