Diselenides and Iodine: Influence of Solution Equilibria Between Covalent Compounds and Charge – Transfer Complexes

Abstract

Abstract Substitution of diselenides with sterically crowded groups enable the formation of iodoselanes, compounds with covalent Se-1 bonds. With less bulky substituents, charge-transfer complexes become the predominant species. Conditions, causing the formation either of iodoselanes Ar-Se-l (2d-h) or charge-transfer complexes (2a-b) were investigated by the reaction of diaryl diselenides 1a-h with iodine.