title: Vibronic interaction in europium nitrates Eu(NO3)3 x 4SOR2.
abstract: Luminescence and excitation of luminescence vibronic spectra of europium nitrates Eu(NO3)3 x 4SOR2 containing sulphoxide derivatives were obtained and analysed. Some factors influencing the intensity distribution in vibronic sidebands are discussed. Significant variation of the intensity distribution in antiStokes sidebands of Eu3+ electronic transitions in series of nitrates results from the difference in effective charges on coordinated oxygen atoms of ligands. Another important detail of the vibronic spectra is a redistribution of intensity in the region of 5D0, 5D1-->7F2 transitions of luminescence spectra originated in overlap of different vibronic transitions. Mixing between the 7F2 electronic state of Eu3+ and vibronic satellites of 7F0 electronic state was studied both under conditions of resonance and in case of significant detuning.
authors.affiliation: Molecular Engineering Laboratory, Institute of Radioengineering and Electronics of RAS, Fryazino Moscow reg., Russia. vit225@ire216.msk.su
authors.forename: V I
authors.initials: VI
authors.lastname: Tsaryuk
authors.forename: V D
authors.initials: VD
authors.lastname: Savchenko
authors.forename: V F
authors.initials: VF
authors.lastname: Zolin
authors.forename: V A
authors.initials: VA
authors.lastname: Kudryashova
mesh_terms: D005063:Europium / Q000737:chemistry*; D049449:Luminescence; D009566:Nitrates / Q000737:chemistry; D013057:Spectrum Analysis
chemical_list: D009566:Nitrates; D005063:Europium