The electronic structure of a diarsaallene –AsCAs– and a phosphaarsaallene –PCAs–: UV photoelectron spectroscopy and theoretical studies

Abstract

Listen

Translate article

The electronic properties of a diarsaallene ArAsCAsAr and a phosphaarsaallene ArPCAsAr (Ar: 2,4,6-tri-tert-butylphenyl) have been investigated by using UV photoelectron spectroscopy and by density functional calculations on model compounds [(CH 3) 2C 6H 3PnCAsC 6H 3(CH 3) 2, Pn: As, P]. Moreover, a comparison of the geometrical and electronic structures of the parent heteroallenes with those of the arsaethene H 2CAsH and phosphaethene H 2CPH has also been undertaken in order to determine the magnitude of the interaction between the π bond and the pnictogen lone pair n Pn.