Fluorescence of europium(III) trapped in silica gel-glass as a probe for cation binding and for changes in cage symmetry during gel dehydration
Publication type: Journal Article
Publication date: 1984-09-01
scimago Q2
wos Q2
SJR: 0.546
CiteScore: 5.9
Impact factor: 3.1
ISSN: 00092614, 18734448
Physical and Theoretical Chemistry
General Physics and Astronomy
Abstract
The fluorescence of Eu(III) is a sensitive probe for the gel-glass transformation. Silica gel-glass containing Eu(III) was prepared by hydrolysis of tetramethoxysilane. The total fluorescence of EU(III) from the 5 D o electronic state exhibits a gradual increase and a relative increase of intensity of the hypersensitive transition 5 D o → 7 F 2 as a function of time and temperature of dehydration of the gel. This behavior is explained by formation of a chemical bond between Eu(III) and the oxygens of the silicate group whereby Eu(III) acquires a symmetry similar to that in a regular glass obtained by melting the appropriate oxides. The degeneracy of the 7 F 1 and 7 F 2 states is removed in low-symmetry sites in the glass as reflected by the half-width of the emission bands.
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160
Total citations:
160
Citations from 2025:
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(2.5%)
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GOST
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Levy D. et al. Fluorescence of europium(III) trapped in silica gel-glass as a probe for cation binding and for changes in cage symmetry during gel dehydration // Chemical Physics Letters. 1984. Vol. 109. No. 6. pp. 593-597.
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Levy D. B., Reisfeld R., Avnir D. Fluorescence of europium(III) trapped in silica gel-glass as a probe for cation binding and for changes in cage symmetry during gel dehydration // Chemical Physics Letters. 1984. Vol. 109. No. 6. pp. 593-597.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1016/0009-2614(84)85431-7
UR - https://doi.org/10.1016/0009-2614(84)85431-7
TI - Fluorescence of europium(III) trapped in silica gel-glass as a probe for cation binding and for changes in cage symmetry during gel dehydration
T2 - Chemical Physics Letters
AU - Levy, David B.
AU - Reisfeld, R.
AU - Avnir, D.
PY - 1984
DA - 1984/09/01
PB - Elsevier
SP - 593-597
IS - 6
VL - 109
SN - 0009-2614
SN - 1873-4448
ER -
Cite this
BibTex (up to 50 authors)
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@article{1984_Levy,
author = {David B. Levy and R. Reisfeld and D. Avnir},
title = {Fluorescence of europium(III) trapped in silica gel-glass as a probe for cation binding and for changes in cage symmetry during gel dehydration},
journal = {Chemical Physics Letters},
year = {1984},
volume = {109},
publisher = {Elsevier},
month = {sep},
url = {https://doi.org/10.1016/0009-2614(84)85431-7},
number = {6},
pages = {593--597},
doi = {10.1016/0009-2614(84)85431-7}
}
Cite this
MLA
Copy
Levy, D., et al. “Fluorescence of europium(III) trapped in silica gel-glass as a probe for cation binding and for changes in cage symmetry during gel dehydration.” Chemical Physics Letters, vol. 109, no. 6, Sep. 1984, pp. 593-597. https://doi.org/10.1016/0009-2614(84)85431-7.