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Thermochromic shifts of pyrene excimer fluorescence

✍ Scribed by E.M.S. Castanheira; J.M.G. Martinho

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 312 KB
Volume: 206
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)85514-o

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✦ Synopsis

Thennochromic shifts of pyrene excimer were obtained in cyclohexane (25-60'(Z) and ethanol (25-70%). The observed shifts are due to changes in polarinability between the states involved in the electronic transition. The parameters obtained from thermoehromic shifts agree with the ones calculated from solvatochromic shifts. This implies that the difference in polarizability between the electronic states does not change with solvent and temperature in the range of temperatures covered.

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