Solid-state linear-polarized IR-spectroscopic characterization of l-methionine

The IR-spectral characteristic bands assignment in 1700–400 cm−1 IR-spectral region of l-methionine in solid-state has been carried out by means of linear-polarized IR-spectral analysis of oriented solid-samples as a suspension in nematic liquid crystal. The later results are supported by the comparison with the known single crystal X-ray data as far as the presented spectroscopic approach give possibilities not only for obtaining of the experimental IR-bands assignment but a receiving a stereo-structural information.