Ultraviolet Photolysis of GeH3Br; Infrared Spectra of Matrix-Isolated GeH2Br and GeHBr

Abstract

The ultraviolet photolyses of GeH₃Br and GeD₃Br in an argon matrix have been performed between 8 and 24°K. The major products resulting from photolysis appear to be GeH₂Br and GeHBr and their deuterated counterparts. All the fundamental vibrational frequencies of these species are observed with the exceptions of one of the GeH stretches and the GeH₂ and GeD₂ valence bends (ν₂) of GeH₂Br and GeD₂Br, respectively. The results of the normal coordinate and self‐consistent extended Hückel calculations are consistent with the experimental observations and suggest that GeH₂Br and GeHBr are pyramidal and bent, respectively. Structural and bonding properties of these species are also discussed.