Crystal-structure effects in the CeL3-edge x-ray-absorption spectrum ofCeO2: Multiple-scattering resonances and many-body final states

1994 ◽  
Vol 50 (8) ◽  
pp. 5074-5080 ◽  
Author(s):  
A. V. Soldatov ◽  
T. S. Ivanchenko ◽  
S. Della Longa ◽  
A. Kotani ◽  
Y. Iwamoto ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Absorption Spectrum ◽  
Multiple Scattering ◽  
Final States ◽  
Many Body ◽  
X Ray ◽  
X Ray Absorption ◽  
Scattering Resonances

Multiple-scattering analysis of the X-ray absorption spectrum of Os3(CO)12 carbonyl cluster

1991 ◽  
Vol 184 (5-6) ◽  
pp. 485-490 ◽  
Author(s):  
A. Filipponi ◽  
A. Di Cicco ◽  
R. Zanoni ◽  
M. Bellatreccia ◽  
V. Sessa ◽  
...  
Keyword(s):  
Absorption Spectrum ◽  
Multiple Scattering ◽  
Carbonyl Cluster ◽  
X Ray ◽  
X Ray Absorption

Two-electron excitations and one-electron multiple-scattering resonances in the x-ray absorption of solid neon

1993 ◽  
Vol 47 (24) ◽  
pp. 16155-16161 ◽  
Author(s):  
A. V. Soldatov ◽  
T. S. Ivanchenko ◽  
S. Della Longa ◽  
A. Bianconi
Keyword(s):  
Multiple Scattering ◽  
X Ray ◽  
X Ray Absorption ◽  
Electron Excitations ◽  
Scattering Resonances

L3 edge X-ray absorption spectrum of CeO2: crystal structure effects

1995 ◽  
Vol 208-209 ◽  
pp. 53-55 ◽  
Author(s):  
A.V. Soldatov ◽  
T.S. Ivanchenko ◽  
A. Kotani ◽  
A. Bianconi
Keyword(s):  
Crystal Structure ◽  
Absorption Spectrum ◽  
X Ray ◽  
X Ray Absorption

scholarly journals Theoretical description of optical and x-ray absorption spectra of MgO including many-body effects

2021 ◽  
Vol 103 (19) ◽  
Author(s):  
Vijaya Begum ◽  
Markus E. Gruner ◽  
Christian Vorwerk ◽  
Claudia Draxl ◽  
Rossitza Pentcheva
Keyword(s):  
Absorption Spectra ◽  
Theoretical Description ◽  
Many Body ◽  
X Ray ◽  
Many Body Effects ◽  
X Ray Absorption

Extended X-ray absorption fine structure and multiple-scattering simulation of nickel dithiolene complexes Ni[S2C2(CF3)2]2n(n= −2, −1, 0) and an olefin adduct Ni[S2C2(CF3)2]2(1-hexene)

2015 ◽  
Vol 22 (1) ◽  
pp. 124-129 ◽  
Author(s):  
Weiwei Gu ◽  
Hongxin Wang ◽  
Kun Wang
Keyword(s):  
Fine Structure ◽  
Multiple Scattering ◽  
Edge Structure ◽  
X Ray ◽  
Absorption Fine ◽  
Square Planar ◽  
Square Planar Complexes ◽  
Uv Visible ◽  
Edge Features ◽  
X Ray Absorption

A series of Ni dithiolene complexes Ni[S2C2(CF3)]2n(n= −2, −1, 0) (1,2,3) and a 1-hexene adduct Ni[S2C2(CF3)2]2(C6H12) (4) have been examined by NiK-edge X-ray absorption near-edge structure (XANES) and extended X-ray absorption fine-structure (EXAFS) spectroscopies. Ni XANES for1–3reveals clear pre-edge features and approximately +0.7 eV shift in the NiK-edge position for `one-electron' oxidation. EXAFS simulation shows that the Ni—S bond distances for1,2and3(2.11–2.16 Å) are within the typical values for square planar complexes and decrease by ∼0.022 Å for each `one-electron' oxidation. The changes in NiK-edge energy positions and Ni—S distances are consistent with the `non-innocent' character of the dithiolene ligand. The Ni—C interactions at ∼3.0 Å are analyzed and the multiple-scattering parameters are also determined, leading to a better simulation for the overall EXAFS spectra. The 1-hexene adduct4presents no pre-edge feature, and its NiK-edge position shifts by −0.8 eV in comparison with its starting dithiolene complex3. Consistently, EXAFS also showed that the Ni—S distances in4elongate by ∼0.046 Å in comparison with3. The evidence confirms that the neutral complex is `reduced' upon addition of olefin, presumably by olefin donating the π-electron density to the LUMO of3as suggested by UV/visible spectroscopy in the literature.

107. Anisotropy effects in the linearly polarized X-ray absorption spectrum of Br2 intercalated graphite fibers and HOPG

Carbon ◽  
1984 ◽  
Vol 22 (2) ◽  
pp. 216
Author(s):  
J.L Feldman ◽  
E.F Skelton ◽  
A.C Ehrlich ◽  
D.D Dominguez ◽  
W.T Elam ◽  
...  
Keyword(s):  
Absorption Spectrum ◽  
X Ray ◽  
Intercalated Graphite ◽  
Linearly Polarized ◽  
Graphite Fibers ◽  
X Ray Absorption
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