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Updated: Sep 26, 2026

Determination of the Gas-phase Acidities of Oligopeptides
Published on: June 24, 2013
Beta-alanine-hydrochloride (2:1) crystal: structure, 13C NMR and vibrational properties, protonation character
D Godzisz1, M Ilczyszyn, Z Ciunik
1Faculty of Chemistry, University of Wrocław, Joliot-Curie 14, 50-383 Wrocław, Poland.
Abstract:
The crystal structure of beta-alanine-hydrochloride (2:1) complex (2A-HCl) has been determined by X-ray diffraction method at 298 and 100 K as monoclinic, space group C2/c, Z=4. The crystal comprises chloride anions and protonated beta-alanine dimers: two beta-alanine zwitterions are joined by strong, symmetric (Ci) hydrogen bond with the O...O distance of 2.473 A at room temperature. Powder FT-IR and FT-Raman as well as solid state 13C NMR spectra provide insights into the solid structure of this complex, character of its hydrogen bonds and the beta-alanine protonation.
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