Fluorescence of deutero-chrome alum

Fluorescence transitions between the 2 E excited state and the 4 A 2 ground state of Cr +++ in KAI (SO 4) 2·12D 2O:Cr +++ are observed while similar transitions do not occur in the corresponding protonated compound. This is taken as confirmation of the hypothesis that the excitation energy in the pr...

Full description

Saved in:
Bibliographic Details
Published in:Journal of molecular spectroscopy 1965-01, Vol.16 (2), p.296-301
Main Authors: Goldsmith, G.J., Shallcross, F.V., McClure, D.S.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Fluorescence transitions between the 2 E excited state and the 4 A 2 ground state of Cr +++ in KAI (SO 4) 2·12D 2O:Cr +++ are observed while similar transitions do not occur in the corresponding protonated compound. This is taken as confirmation of the hypothesis that the excitation energy in the protonated compound is dissipated via radiationless processes through the OH vibrational overtones. In the case of OD, the transfer of energy from the electronic states is less efficient and hence radiative processes can occur. The temperature dependence of the fluorescence lifetime is given and evidence is presented for the lack of a center of symmetry for the trivalent cation in the low temperature form of this alum.
ISSN:0022-2852
1096-083X
DOI:10.1016/0022-2852(65)90125-6