Infrared spectroscopy of aniline (C6H5NH2) and its cation in a cryogenic argon matrix

Infrared absorption spectra of aniline, trapped in a low-temperature 5 K argon matrix, have been obtained in the spectral region from 500 to 4000 cm(-1). The aniline cation C6H7N+, was formed inside the matrix by UV laser irradiation. We report the first IR absorption spectroscopy of this cation in an argon matrix: five fundamental vibrational bands were observed. (C) 2001 Elsevier Science B.V. All rights reserved.