期刊
CHEMICAL PHYSICS LETTERS
卷 417, 期 1-3, 页码 246-250出版社
ELSEVIER
DOI: 10.1016/j.cplett.2005.09.039
关键词
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Ionic fragmentation of core-excited alpha-alanine in gas phase was observed. The most dominant ionic species is COOH+ for all core-ionizations at C 1s, N 1s, and O 1s. An increase in COO+ and a decrease in COOH+, which were observed as core-hole atom selectivity for the O 1s ionization, are explained by the enhancement of O-H bond scission. Further state-selective O-H bond scission, observed at the O 1s second peak, is attributed to the O(OH)1s -> 3s/sigma* transition. (c) 2005 Elsevier B.V. All rights reserved.
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