VIBRONIC TRANSITIONS IN CENTROSYMMETRIC [EUXLA1-X(AP)(6)](CLO4)(3) CRYSTALS

Citation
W. Strek et al., VIBRONIC TRANSITIONS IN CENTROSYMMETRIC [EUXLA1-X(AP)(6)](CLO4)(3) CRYSTALS, Acta Physica Polonica. A, 84(5), 1993, pp. 979-984
Citations number
4
Categorie Soggetti
Physics
Journal title
ISSN journal
05874246
Volume
84
Issue
5
Year of publication
1993
Pages
979 - 984
Database
ISI
SICI code
0587-4246(1993)84:5<979:VTIC[C>2.0.ZU;2-X
Abstract
The optical excitation and emission spectra of Eu(III) in [EuxLa1-x(AP )(6)](ClO4)(3) centrosymmetric complex were measured. The vibronic tra nsitions were observed in excitation and emission spectra. Following t he vibrational analysis of the infrared and Raman spectra of [PrxLa1-x (AP)(6)](ClO4)(3), the assignment of [EuxLa1-x(AP)(6)](ClO4)(3) vibron ics was given. The concentration effect on excitation and emission spe ctra was investigated. It was found that the vibronic intensities were changed upon the concentration effect. The intensive charge transfer bands were observed in blue region. Their intensities decreased with i ncreasing concentration.