@article{oai:nitech.repo.nii.ac.jp:00004020, author = {Okabayashi, Hirofumi and Oshima, Kunihiro and Etori, Hideki and Debnath, Radhaballabh and Taga, Keijiro and Yoshida, Tadayoshi and Nishio, Etsuo}, issue = {9}, journal = {Journal of the Chemical Society. Faraday transactions.}, month = {Jan}, note = {Trimers, tetramers and pentamers of N-acylglycine oligomer acid types with various acyl chains, their potassium or sodium salts, and their N-deuterated salts have been prepared. The vibrational spectra of these molecules have been measured and compared with those of polyglycine I (PGI; extended β form) and polyglycine II (PGII; helical form). Only a conformation similar to PGII exists in the solid state for these compounds. The long acyl chains induce a further PGII-like structure in the NH・・・O=C and peptide skeletons. This effect is reflected markedly in the NH and ND stretching, amide I and II and low-frequency regions., application/pdf}, pages = {1561--1567}, title = {Vibrational spectra of N-acylglycine oligomers and the long N-acyl chain effect}, volume = {86}, year = {1990} }