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Vibrational spectral studies of (β-alanine) β-alaninium nitrate

✍ Scribed by M. Mohamed Ali Jinnah; M. Umadevi; V. Ramakrishnan

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
112 KB
Volume
35
Category
Article
ISSN
0377-0486

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✦ Synopsis

Abstract

Laser Raman and infrared spectra of (β‐alanine) β‐alaninium nitrate were recorded and analyzed at room temperature. The proposed assignment of normal modes is based on group theoretical analysis. The hydrogen atom is shared by two amino acids, leading to switching of roles of the cation and zwitterion. The two alanine groups share one proton and become monoprotonated. The presence of an ionized carboxylic group and carbonyl was identified. The extensive hydrogen bonding in the crystal is responsible for the changes in the position and intensity of several bands. The nitrate anion fundamentals, however, continue to be degenerate. Copyright © 2004 John Wiley & Sons, Ltd.

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