Resonant inelastic soft x-ray scattering (RIXS) was used to study the electronic structure of solid cysteine films. A RIXS map approach, i.e., plotting the x-ray emission intensity as a function of excitation and emission energy, allows us to separate the contributions of the three chemically non-equivalent carbon atoms in cysteine. In particular, we can identify orbitals localized near the photoexcited atoms, as well as orbitals that are delocalized over the entire molecule.
Non-equivalent carbon atoms in the resonant inelastic soft X-ray scattering map of cysteine
F. Meyer, L. Weinhardt, M. Blum, M. Bär, R. G. Wilks, W. Yang, C. Heske, F. Reinert; Non-equivalent carbon atoms in the resonant inelastic soft X-ray scattering map of cysteine. J. Chem. Phys. 21 January 2013; 138 (3): 034306. https://doi.org/10.1063/1.4774059
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