Open AccessVerification of NEXAFS assignments by a comparison of fragmentation between gaseous and condensed methyl formate
Author(s) -
IkeuraSekiguchi Hiromi,
Sekiguchi Tetsuhiro,
Saito Norio,
Suzuki Isao H.
Publication year - 2001
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049500017143
Subject(s) - methyl formate , polyatomic ion , formate , desorption , ion , yield (engineering) , chemistry , fragmentation (computing) , analytical chemistry (journal) , molecule , xanes , materials science , methanol , spectroscopy , physics , organic chemistry , adsorption , quantum mechanics , computer science , metallurgy , operating system , catalysis
According to the ion desorption from condensed methyl formate (DCOOCH3) by C 1 s electron excitation, C + yield was strongly enhanced at 289.1 eV, a higher energy side of C1 s (DC) ⇒π*(C=O) peak. This feature could not be clearly assigned. In this work, to clarify the feature, fragment‐ion yield curves of gas‐phase methyl formate were measured and compared with those of condensed one, since gas‐phase and condensed systems are presumed to show more or less similar fragment‐ion yield curves under similar excitations. The results demonstrate that fragment‐ion yield curves are useful for the assignments of NEXAFS features in both gaseous and condensed polyatomic molecules.