Wolf, Thomas J. A.; Paul, Alexander C.; Folkestad, Sarai D.; Myhre, Rolf H.; Cryan, James P.; Berrah, Nora; Bucksbaum, Phil H.; Coriani, Sonia; Coslovich, Giacomo; Feifel, Raimund; Martinez, Todd J.; Moeller, Stefan P.; Mucke, Melanie; Obaid, Razib; Plekan, Oksana; Squibb, Richard J.; Koch, Henrik; Guhr, Markus published an article in 2021, the title of the article was Transient resonant Auger-Meitner spectra of photoexcited thymine.Recommanded Product: 65-71-4 And the article contains the following content:
We present the first investigation of excited state dynamics by resonant Auger-Meitner spectroscopy (also known as resonant Auger spectroscopy) using the nucleobase thymine as an example. Thymine is photoexcited in the UV and probed with X-ray photon energies at and below the oxygen K-edge. After initial photoexcitation to a ππ* excited state, thymine is known to undergo internal conversion to an nπ* excited state with a strong resonance at the oxygen K-edge, red-shifted from the ground state π* resonances of thymine (see our previous study Wolf, et al., Nat. Commun., 2017, 8, 29). We resolve and compare the Auger-Meitner electron spectra associated both with the excited state and ground state resonances, and distinguish participator and spectator decay contributions. Furthermore, we observe simultaneously with the decay of the nπ* state signatures the appearance of addnl. resonant Auger-Meitner contributions at photon energies between the nπ* state and the ground state resonances. We assign these contributions to population transfer from the nπ* state to a ππ* triplet state via intersystem crossing on the picosecond timescale based on simulations of the X-ray absorption spectra in the vibrationally hot triplet state. Moreover, we identify signatures from the initially excited ππ* singlet state which we have not observed in our previous study. The experimental process involved the reaction of 5-Methylpyrimidine-2,4(1H,3H)-dione(cas: 65-71-4).Recommanded Product: 65-71-4
The Article related to thymine photoexcitation auger photoelectron spectra, Physical Organic Chemistry: Resonance Spectra (Electron Spin, Nuclear Magnetic and Fourier Transform Nuclear Magnetic, Quadrupole, etc.) and other aspects.Recommanded Product: 65-71-4
Referemce:
Pyrimidine | C4H4N2 – PubChem,
Pyrimidine – Wikipedia