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1,6-Diphenyl-1,3,5-hexatriene as a fluorescence standard

✍ Scribed by E.D. Cehelnik; R.B. Cundall; J.R. Lockwood; T.F. Palmer

Publisher: Elsevier Science
Year: 1974
Tongue: English
Weight: 283 KB
Volume: 27
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(74)80311-8

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✦ Synopsis

The absorption and fluorescence spectra, fluorescence yields and decay times of all trans-1,6_diphenyI-1,3,5hexatriene @PHI have been measured over a range of temperature in several different solvents. In non-polar solvents fluorescence yields decrease with increase of temperature whilst decay times are independent of temperature but vary with solvent in the systems examined between 0" and 100°C. The results are explained by a mechanism in which a configurational change is required for efficient fluorescence.

. DPH is suitable for deve!opment as a fluorescent standard for both yield and lifetime measurements.

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