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Proceedings chapter
English

Coordination Compounds of Metal Ions in Sol-Gel Glasses

Published inCoordination chemistry: a century of progress, Editors Kauffman, George B., p. 439-443
Presented at Denver, March 28-April 2, 1993
PublisherWashington DC : American Chemical Society
Collection
  • ACS Symposium Series; 565
Publication date1994
Abstract

Sol-gel glasses (known since 1846) are a family of inorganic glasses or organic composites prepared at ambient temperature, usually from silicon alkoxides (sometimes mixed with other alkoxides). Hydrolysis and subsequent polycondensation of the precursor solution allows incorporation of specific cations or their pre-existing complexes. Detailed study of absorption and emission spectra, including lifetimes of their excited states, sometimes allows determination of the site symmetry and the coordination number, e.g., for cobalt (II). The ruthenium (II) tris(2,2'-bipyridine) cation in glass shows a much higher yield of fluorescence than in solution, partly because of less triplet quenching. Lanthanides can show very high luminescence yields because no collisions occur between the species in an excited state and in its ground state.

eng
Citation (ISO format)
REISFELD, Renata, JOERGENSEN, Christian. Coordination Compounds of Metal Ions in Sol-Gel Glasses. In: Coordination chemistry: a century of progress. Denver. Washington DC : American Chemical Society, 1994. p. 439–443. (ACS Symposium Series)
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Proceedings chapter (Published version)
accessLevelRestricted
Identifiers
  • PID : unige:165604
ISBN0841214638
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