Answers are grounded in this paper and cite their sources.
Vibrational Raman optical activity spectra in the range 1100–1500 cm–1 of aqueous solutions of L-alanyl-L-alanine, D-alanyl-D-alanine, lysozyme, and α-chymotrypsin show features originating in coupled Cα–H and N–H deformations of the peptide backbone and appear to be sensitive to the details of the secondary conformation.
No takes yet. Share an insight, caveat, or question.
Barron et al. (1990) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: