Infrared spectra, vibrational assignment, and ab initio calculations for N-bromo-hexafluoro-2-propanimine

► Vibrational spectra of (CF3)2CNBr. ► Mixing of the CF3 vibrations with the CNBr vibrations. ► Effect of Br on the CN distance. ► Barrier of the CF3 rotor. ► Effect of the Br atom on the group frequencies of the (CF3)2C moiety.