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Raman and IR spectral studies of D ‐phenylglycinium perchlorate
Author(s) -
Ramaswamy S.,
Rajaram R. K.,
Ramakrishnan V.
Publication year - 2002
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.898
Subject(s) - raman spectroscopy , chemistry , hydrogen bond , intermolecular force , infrared , perchlorate , crystal (programming language) , molecular vibration , crystallography , single crystal , infrared spectroscopy , computational chemistry , molecule , optics , organic chemistry , physics , ion , computer science , programming language
Abstract The Raman and infrared spectra of D ‐phenylglycinium perchlorate were recorded at room temperature. Tentative vibrational assignments of the observed wavenumbers were made by comparison with the vibrational wavenumbers of glycine, phenylalanine and other similar compounds. Anions were found to coordinate through hydrogen bonding interactions to other ligands in the crystal, affecting the T d symmetry and thereby causing the degeneracies of several modes to be removed. The extensive intermolecular hydrogen bonding in the crystal leads to a shift of bands due to the stretching and bending modes of various functional groups. The broadening and appearance of multiple bands for the carbonyl stretching mode due to the resonance interaction is also discussed. Copyright © 2002 John Wiley & Sons, Ltd.