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The Dynamics of Populating The Lowest Triplet State Of Benzophenone Following Singlet Excitation

✍ Scribed by Robin M. Hochstrasser; Hanspeter Lutz; Gary W. Scott

Publisher: Elsevier Science
Year: 1974
Tongue: English
Weight: 639 KB
Volume: 24
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(74)85424-2

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✦ Synopsis

Measurements of the build-up of triplet-triplet absorption at 5300 A have been made during and subsequent to the excitation of benzophenone by 5 psec pulses of 3545 A radiation (frequency tripled Nd*: glass fundamental). The data were fitted to a simple model that included the finite gaussian pulse width and results for the assumed pro-CeSS Si%Tr are: k-r = 16.5 f 3 p~ec for benzophenone in ethanol; k-' = 30 t 5 psec for benzophenone &benzene. This new type of solvent effect on triplet build-up is discussed.

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