Raman spectra of polyglycines

The laser‐excited Raman spectrum of helical polyglycine II has been obtained. Oligomers of polyglycine are in the planar zigzag conformation and their Raman spectra are indicative of the spectrum of polyglycine I. The Raman spectra of polyglycines have bands complementary to the infrared which are sensitive to the conformation of the chain. The spectra of the oligomers have bands sensitive to the length of the polyglycine. The Raman spectra of di‐ and triglycine in aqueous solution suggest the conformation is neither planar nor helical.