Tert‐butyl‐dibromophosphane ^tBuPBr₂—a new chemical synthesis and first spectroscopic characterization

Abstract

A new chemical synthesis pathway to obtain tert‐butyl‐dibromophosphane is proposed and compared to former ones. A first IR and NMR spectroscopic characterization of the molecule is given. IR spectra were recorded between 80 and 660 cm−1 at the SOLEIL Synchrotron facility and between 800 and 3100 cm−1 at the Kassel laboratories. All 42 vibrational modes were calculated using the Gaussian program package. The main abundant isotopologue tBuP79Br81Br is chiral, and the barrier to enantiomeric inversion has been determined. Assignments of the observed infrared bands are proposed.