Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

ESR studies on the direct photolysis of aliphatic dipeptides. [uv radiation]

Journal Article · · Radiat. Res.; (United States)
DOI:https://doi.org/10.2307/3574555· OSTI ID:5340269
The direct photolysis of aqueous solutions of aliphatic dipeptides leads to the formation of different types of radicals. Depending on the temperature range the most characteristic ones are the methyl radical CH/sub 3/, the formyl radical CHO, the imino radical NCH/sub 2/, and a radical (NH/sub 2/)CHR--CONH--CR--COOH formed by hydrogen atom abstraction. The possible mechanisms of the formation of the radicals are discussed. It is suggested that in dipeptides bonds are broken in various parts of the molecules as a consequence of direct photolysis. In particular, the peptide bond seems to be ruptured.
Research Organization:
Justus-Leibig-Universitat, Giessen, Ger.
OSTI ID:
5340269
Journal Information:
Radiat. Res.; (United States), Journal Name: Radiat. Res.; (United States) Vol. 72:1; ISSN RAREA
Country of Publication:
United States
Language:
English