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| Home > Publications database > Core-Level Spectroscopy of 2-Thiouracil at the Sulfur L$_{1}$- and L$_{2,3}$-Edges Utilizing a SASE Free-Electron Laser |
| Home > Publications database > Core-Level Spectroscopy of 2-Thiouracil at the Sulfur L$_{1}$- and L$_{2,3}$-Edges Utilizing a SASE Free-Electron Laser |
| Journal Article | PUBDB-2021-04460 |
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2021
MDPI
Basel
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Please use a persistent id in citations: doi:10.3390/molecules26216469 doi:10.3204/PUBDB-2021-04460
Abstract: In this paper, we report X-ray absorption and core-level electron spectra of the nucleobase derivative 2-thiouracil at the sulfur L$_{1-}$ and L$_{2,3-}$ edges. We used soft X-rays from the free-electron laser FLASH2 for the excitation of isolated molecules and dispersed the outgoing electrons with a magnetic bottle spectrometer. We identified photoelectrons from the 2p core orbital, accompanied by an electron correlation satellite, as well as resonant and non-resonant Coster–Kronig and Auger–Meitner emission at the L$_{1-}$ and L$_{2,3-}$ edges, respectively. We used the electron yield to construct X-ray absorption spectra at the two edges. The experimental data obtained are put in the context of the literature currently available on sulfur core-level and 2-thiouracil spectroscopy.
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