Experimental and ab initio study of the photofragmentation of DNA and RNA sugars

Journal Article · Thu Sep 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.84.033419· OSTI ID:22068738

Ha, D T ^[1]; Huels, M A ^[2]; Huttula, M; Urpelainen, S ^[3]; Kukk, E ^[1]

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1. Department of Physics and Astronomy, University of Turku (Finland)
2. Department of Nuclear Medicine and Radiobiology, Faculty of Medicine, University of Sherbrooke, Sherbrooke, Quebec (Canada)
3. Department of Physics, University of Oulu (Finland)

The photoelectron-photoion-photoion coincidence method is used to measure the photodissociation of doubly charged D-ribose (C{sub 5}H{sub 10}O{sub 5}), the RNA sugar molecules, and 2-deoxy-D-ribose (C{sub 5}H{sub 10}O{sub 4}), the DNA sugar molecules, following normal Auger decay after initial C 1s and O 1s core ionizations. The fragment identification is facilitated by measuring isotopically labeled D-ribose, such as D-ribose deuterated at C(1), and with {sup 13}C at the C(5) position. Ab initio quantum chemistry calculations are used to gain further insight into the abundant appearance of the CHO{sup +} fragment.

• OSTI ID: 22068738
• Journal Information: Physical Review. A, Vol. 84, Issue 3; Other Information: (c) 2011 American Institute of Physics; Country of input: Syrian Arab Republic; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
CARBON 13
COINCIDENCE METHODS
DECAY
DISSOCIATION
DNA
IONIZATION
MOLECULES
PHOTOLYSIS
RIBOSE
RNA
SACCHAROSE