title: PI-ELECTRONIC STRUCTURE OF THE PEPTIDE GROUP AND HYDROGEN-BONDED POLYPEPTIDES.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D002627:Chemistry, Physical; D004581:Electronics; D004583:Electrons; D006859:Hydrogen; D010455:Peptides
chemical_list: D010455:Peptides; D006859:Hydrogen
keywords: CHEMISTRY; CHEMISTRY, PHYSICAL; ELECTRONS; HYDROGEN; PEPTIDES