TY - JOUR
T1 - On the origin of dips in total fluorescence yield X-ray absorption spectra
T2 - Partial and inverse partial fluorescence yield at the L-edge of cobalt aqueous solution
AU - Soldatov, Mikhail A.
AU - Lange, Kathrin M.
AU - Gotz, Malte D.
AU - Engel, Nicholas
AU - Golnak, Ronny
AU - Kothe, Alexander
AU - Aziz, Emad F.
N1 - Funding Information:
We would like to thank Prof. Majed Chergui (Ecole Polytechnique Fédérale de Lausanne) for the fruitful discussion and Prof. Stephen P. Cramer (Lawrence Berkeley National Laboratory and UC Davis) for the proposed idea to declare the mechanism. This work was supported by the Helmholtz–Gemeinschaft via the young investigator fund VH-NG-635 ( E.F.A. author). Part of this work was financially supported by the European Research Council Grant no. 279 344 ( E.F.A. author). M.S. is grateful to the Ministry of Education and Science of the Russian Federation (scholarship of the President of Russian Federation).
PY - 2012/9/12
Y1 - 2012/9/12
N2 - Dips appearing in the L-edge total fluorescence yield (TFY) spectra of transition-metal ions in aqueous solutions have been recently attributed to, orbital mixing of the solute with the solvent orbitals. Here we compare the L-edge TFY, Oxygen K α and Co 2+ L l(3s → 2p 3/2), L η(3s → 2p 1/2), L α(3d → 2p 3/2) and L β(3d → 2p 1/2) -edge partial fluorescence yield with the transmission spectrum. We thereby confirm that these mixed orbitals lead to electron delocalization between the valence d-orbitals of the transition metal and the valence bands of the solvent molecules, quenching their X-ray fluorescence.
AB - Dips appearing in the L-edge total fluorescence yield (TFY) spectra of transition-metal ions in aqueous solutions have been recently attributed to, orbital mixing of the solute with the solvent orbitals. Here we compare the L-edge TFY, Oxygen K α and Co 2+ L l(3s → 2p 3/2), L η(3s → 2p 1/2), L α(3d → 2p 3/2) and L β(3d → 2p 1/2) -edge partial fluorescence yield with the transmission spectrum. We thereby confirm that these mixed orbitals lead to electron delocalization between the valence d-orbitals of the transition metal and the valence bands of the solvent molecules, quenching their X-ray fluorescence.
UR - https://www.scopus.com/pages/publications/84865706473
U2 - 10.1016/j.cplett.2012.07.067
DO - 10.1016/j.cplett.2012.07.067
M3 - Article
AN - SCOPUS:84865706473
SN - 0009-2614
VL - 546
SP - 164
EP - 167
JO - Chemical Physics Letters
JF - Chemical Physics Letters
ER -