Raman spectrum of l-asparagine monohydrate

Abstract

The Raman spectrum ofl-asparagine monohydrate in the form of a single crystal has been recorded for the first time.λ 2537 excitation has been used. Fifty-three Raman frequency shifts have been recorded. They are grouped as follows: Eight Raman lines coming under the lattice spectrum, three Raman lines arising from low-frequency vibrations of the hydrogen bonds and the remaining forty-two arising from the internal oscillations of the asparagine molecule. Appropriate assignments have been given for the observed Raman lines.