Electronic structure and spectral properties of terbium(III) nitrate complex with hexamethylphosphoramide.

Title Electronic structure and spectral properties of terbium(III) nitrate complex with hexamethylphosphoramide.
Authors V.I. Kharchenko; I.A. Kurbatov; A.I. Cherednichenko; A.G. Mirochnik; P.A. Zhikhareva
Journal Spectrochim Acta A Mol Biomol Spectrosc
DOI 10.1016/j.saa.2016.12.004
Abstract

Spectral properties of terbium(III) nitrate complex with hexamethylphosphoramide have been studied by quantum-chemical methods within the density functional theory and methods of luminescent and X-ray photoelectron spectroscopy. Analysis of the luminescence excitation spectrum of the complex has indicated the absence of intramolecular transfer of electronic excitation energy from the ligand levels to the resonance levels of the rare earth central ion, so luminescence of the complex is associated with the electronic f-f-transitions of Tb(3+) ion (transitions (5)D4?(7)FJ, J=3-6). According to quantum-chemical modeling of the excited singlet and triplet levels of the complex, the excitation energy transfer from the ligands onto the central ion does not occur because of the significant difference of energies of their excited states.

Citation V.I. Kharchenko; I.A. Kurbatov; A.I. Cherednichenko; A.G. Mirochnik; P.A. Zhikhareva.Electronic structure and spectral properties of terbium(III) nitrate complex with hexamethylphosphoramide.. Spectrochim Acta A Mol Biomol Spectrosc. 2017;174:297300. doi:10.1016/j.saa.2016.12.004

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65 Tb 158.925350000 Terbium

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