THE STRUCTURE OF HALOGEN ADDUCTS OF SOME SELENIDES AND A TELLURIDE IN SOLUTION STUDIED BY 1H AND 13C NMR SPECTROSCOPY. EVIDENCE FOR THE FORMATION OF A MOLECULAR COMPLEX OF SELENOXANTHONE WITH BROMINE

Abstract

Abstract 1H and 13C NMR chemical shifts of dimethyl selenide, selenoanisole, diphenyl selenide, phenoxyselenine, and phenoxytellurine and their chlorine, bromine, and iodine adducts have been measured to disclose the structure of the adducts in solution. The bromine adduct of selenoxanthone was found to have the structure of a molecular complex. The relative stability of selenuranes is discussed.