Synthesis and Structure of a Stable Iodoselenide

Abstract

Although the diselane 1 is stable upon exposure to air, it is attacked rapidly by iodine, resulting in the formation of 2,4,6-tri-tert-butylphenyl(iodo)selenide 2. Compound 2, which forms anthracite-black crystals melting at 156°C, is also monomeric in the solid state, the SeI bond being 252.9 pm long. Upon dissolving, 2 decomposes to the starting materials.