Fragmentation of dinucleotides d(ApAp) following K shell ionization of phosphorus atom by monochromatic soft X-rays

Autor:	H. Frohlich, F. Guillot, Michel Tronc, J.M. Cosset, C. Le Sech, M le Maire
Rok vydání:	1995
Předmět:	Nuclear and High Energy Physics Fragmentation (mass spectrometry) Chemistry Ionization Phosphodiester bond Analytical chemistry Electron shell Physical chemistry Monochromatic color Mass spectrometry Instrumentation Excitation Ion
Zdroj:	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 105:314-317
ISSN:	0168-583X
Popis:	A dinucleotide: d(ApAp) with molecular formula C 70 H 61 N 11 O 15 P 2 Cl 2 has been irradiated with monochromatic soft X-rays tuned to the K shell resonance energy of the phosphorus atom. The photofragments have been analysed with an electrospray mass spectrometer. The results suggest that among all the possible electronic relaxation mechanisms, a significant one involves the scission of the two phosphodiester bonds as a result of the multiply charged phosphorus ion produced in the electronic rearrangement following the inner shell excitation or ionization of the phosphorus atom.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::190a727337993fb3311f710821caa687 https://doi.org/10.1016/0168-583x(95)00541-2 Zobrazit plný text záznamu Full Text from ScienceDirect