Journal
STRUCTURAL DYNAMICS-US
Volume 3, Issue 6, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4961953
Keywords
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Funding
- Deanship of Scientific Research (DSR), King Abdulaziz University, Jeddah [D-003-435]
- Deutsche Forschungsgemeinschaft [KU952/10-1]
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The Frenkel exciton model was adapted to describe X-ray absorption and resonant inelastic scattering spectra of polynuclear transition metal complexes by means of the restricted active space self-consistent field method. The proposed approach allows to substantially decrease the requirements on computational resources if compared to a full supermolecular quantum chemical treatment. This holds true, in particular, in cases where the dipole approximation to the electronic transition charge density can be applied. The computational protocol was applied to the calculation of X-ray spectra of the hemin complex, which forms dimers in aqueous solution. The aggregation effects were found to be comparable to the spectral alterations due to the replacement of the axial ligand by solvent molecules. (C) 2016 Author(s).
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