Anharmonicity of the core-excited state potential of an organic molecule from NEXAFS vibronic fine structure

We present a high-resolution C K- and O K-NEXAFS study for the large aromatic molecule acenaphthenequinone (ANQ) in the condensed phase. This is the largest molecule for which a distinct vibronic fine structure at the O K-edge has been resolved so far. The most prominent results are the appearance o...

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Bibliographic Details
Published inChemical physics letters Vol. 392; no. 4; pp. 297 - 302
Main Authors Schöll, A, Hübner, D, Schmidt, Th, Urquhart, S.G, Fink, R, Umbach, E
Format Journal Article
LanguageEnglish
Published Elsevier B.V 11.07.2004
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Summary:We present a high-resolution C K- and O K-NEXAFS study for the large aromatic molecule acenaphthenequinone (ANQ) in the condensed phase. This is the largest molecule for which a distinct vibronic fine structure at the O K-edge has been resolved so far. The most prominent results are the appearance of only one predominant vibrational mode, a C–H stretching mode, in the O 1s NEXAFS spectra and the analysis of the anharmonicity of the excited state potential.
ISSN:0009-2614
1873-4448
DOI:10.1016/j.cplett.2004.05.073