Research output: Contribution to journal › Article
Application of DFT for the Modeling of the Valence Region Photoelectron Spectra of Boron and d-Element Complexes and Macromolecules. / Osmushko, Ivan S.; Vovna, Vitaliy I.; Tikhonov, Sergey A.; Chizhov, Yuriy V.; Krauklis, Irina V.
In: International Journal of Quantum Chemistry, Vol. 116, No. 4, 2016, p. 325–332.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Application of DFT for the Modeling of the Valence Region Photoelectron Spectra of Boron and d-Element Complexes and Macromolecules
AU - Osmushko, Ivan S.
AU - Vovna, Vitaliy I.
AU - Tikhonov, Sergey A.
AU - Chizhov, Yuriy V.
AU - Krauklis, Irina V.
PY - 2016
Y1 - 2016
N2 - Using density functional theory (DFT) in conjunction with ultraviolet (UPS) and X-ray photoelectron spectroscopy (XPS), we investigated a number of complexes and macromolecules. We have shown on a large set of UPS, XPS, and DFT data that the calculated Kohn–Sham energies of organic and metalorganic complexes can be used as approximate ionization energies (IEs). It is possible to evaluate IEs with an accuracy of 0.1 eV with the density functional approximation (DFA) defect approach. This method has been successfully tested on a large number of boron b-diketonates and d-metal chelate and sandwich complexes. We interpreted the bands in the valence region of the XP spectra of macromolecular organosilicon compounds in the solid state by taking into account the density of states and the ionization cross-sections. According to DFT calculation results, the one-electron states in the valence region of the model compounds correlate with the positions of the spectral band maxima.
AB - Using density functional theory (DFT) in conjunction with ultraviolet (UPS) and X-ray photoelectron spectroscopy (XPS), we investigated a number of complexes and macromolecules. We have shown on a large set of UPS, XPS, and DFT data that the calculated Kohn–Sham energies of organic and metalorganic complexes can be used as approximate ionization energies (IEs). It is possible to evaluate IEs with an accuracy of 0.1 eV with the density functional approximation (DFA) defect approach. This method has been successfully tested on a large number of boron b-diketonates and d-metal chelate and sandwich complexes. We interpreted the bands in the valence region of the XP spectra of macromolecular organosilicon compounds in the solid state by taking into account the density of states and the ionization cross-sections. According to DFT calculation results, the one-electron states in the valence region of the model compounds correlate with the positions of the spectral band maxima.
KW - density functional theory
KW - photoelectron spectroscopy in the valence region
KW - boron and d-metals complexes
KW - macromolecules
KW - ionization energies
U2 - DOI: 10.1002/qua.25011
DO - DOI: 10.1002/qua.25011
M3 - Article
VL - 116
SP - 325
EP - 332
JO - International Journal of Quantum Chemistry
JF - International Journal of Quantum Chemistry
SN - 0020-7608
IS - 4
ER -
ID: 7547656