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Aggregation of rhodamine 6G in porous silica gels

✍ Scribed by S⇌awomir B⇌oński

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
463 KB
Volume
184
Category
Article
ISSN
0009-2614

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✦ Synopsis

Concentration-dependent changes of absorption spectra of rhodamine 6G (R6G) embedded in silica gel films have been investigated. Dimers of R6G molecules in the gel matrix have been found at concentrations of about 0.1 M. The dimer and monomer spectra as well as the dimerization critical radius have been determined. The dependence of the dimerization strength on the duration of polycondensation reaction was observed. To explain these results, a fractal approach has been proposed and compared with other treatments.

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