Spectral intensities of the trivalent lanthanides. Part 2.—An assessment of the vibronic contribution
- 1 January 1972
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics
- Vol. 68, 169-173
- https://doi.org/10.1039/f29726800169
Abstract
The temperature dependence of the intensities of ƒ↔ƒ spectra is considered. The spectra of glasses of K13[Eu(SiW11O39)2] and K13[Ho(SiW11O39)2] have been obtained at 295 and 80 K. From this and other evidence it is concluded that for molecular complexes of the lanthanides in solution or in the solid state, the perturbation causing the intensity is predominantly static. A vibronic mechanism may be important for lanthanide ions in crystals.Keywords
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