STRUCTURE-SPECTRA RELATIONSHIPS - CR(III) PHOSPHORESCENCE AS A PROBE FOR STRUCTURAL PHASE-TRANSITIONS IN ALUMS

Authors
WASGESTIAN F HUHN P BARTHEL T
Citation
F. Wasgestian et al., STRUCTURE-SPECTRA RELATIONSHIPS - CR(III) PHOSPHORESCENCE AS A PROBE FOR STRUCTURAL PHASE-TRANSITIONS IN ALUMS, Coordination chemistry reviews, 159, 1997, pp. 75-84
Citations number
72
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Coordination chemistry reviews → ACNP
ISSN journal
00108545
Volume
159
Year of publication
1997
Pages
75 - 84
Database
ISI
SICI code
0010-8545(1997)159:<75:SR-CPA>2.0.ZU;2-K
Abstract
The structural variety of the alums is reviewed. Structure-spectra rel ationships are exemplified by the E-2(g)-(4)A(g) phosphorescence of ch romium alums and chromium-doped aluminium alums. The importance of exc hange coupling between chromium ions in neat and diluted crystals is d emonstrated by the concentration dependence of the phosphorescence pro perties. Structural phase transitions were observed in alums containin g the monovalent cations Na+, NH4+, K+ and Tl+, but not Rb+ and Cs+. T he phosphorescence of the ammonium alum is presented in more detail. ( C) 1997 Elsevier Science S.A.