Author:
Savchenko Viktoriia,Brumboiu Iulia Emilia,Kimberg Victor,Odelius Michael,Krasnov Pavel,Liu Ji-Cai,Rubensson Jan-Erik,Björneholm Olle,Såthe Conny,Gråsjö Johan,Dong Minjie,Pietzsch Annette,Föhlisch Alexander,Schmitt Thorsten,McNally Daniel,Lu Xingye,Polyutov Sergey P.,Norman Patrick,Iannuzzi Marcella,Gel’mukhanov Faris,Ekholm Victor
Abstract
AbstractQuenching of vibrational excitations in resonant inelastic X-ray scattering (RIXS) spectra of liquid acetic acid is observed. At the oxygen core resonance associated with localized excitations at the O–H bond, the spectra lack the typical progression of vibrational excitations observed in RIXS spectra of comparable systems. We interpret this phenomenon as due to strong rehybridization of the unoccupied molecular orbitals as a result of hydrogen bonding, which however cannot be observed in x-ray absorption but only by means of RIXS. This allows us to address the molecular structure of the liquid, and to determine a lower limit for the average molecular chain length.
Funder
Swedish Insitute
Vetenskapsrådet
Russian Science Foundation
Carl Tryggers Stiftelse för Vetenskaplig Forskning
Fundamental Research Funds for the Central Universities
National Natural Science Foundation of China
FP7 Ideas: European Research Council
Schweizerischer Nationalfonds zur Föderung der Wissenschaftlichen Forschung
Helmholtz-Zentrum Berlin für Materialien und Energie
Stockholm University
Publisher
Springer Science and Business Media LLC
Cited by
7 articles.
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