title: Low-frequency vibrational spectra of some homopolypeptides in the solid state.
mesh_terms: D000409:Alanine / Q000032:analysis; D000596:Amino Acids / Q000032:analysis*; D005998:Glycine / Q000032:analysis; D010455:Peptides / Q000032:analysis*; D013055:Spectrophotometry, Infrared; D014633:Valine / Q000032:analysis
chemical_list: D000596:Amino Acids; D010455:Peptides; D014633:Valine; D000409:Alanine; D005998:Glycine