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ENVIRONMENTAL EFFECTS ON RADIATIVE RATE CONSTANTS FOR LINEAR POLYENES

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/10046

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Title: ENVIRONMENTAL EFFECTS ON RADIATIVE RATE CONSTANTS FOR LINEAR POLYENES
Creators: Andrews, John R.; Hudson, Bruce S.
Issue Date: 1977
Abstract: The radiative rate constants of diphenylhexatriene and transretinol are calculated from published values of the fluorescence lifetime and quantum $yield.^{1,2}$ The variations in the calculated rate constants with solvent and temperature are quantitatively explained by a theoretical expression, relating the radiative rate constant of a forbidden transition to the amount of mixing with a single allowed $transition.^{3}$ The mixing is inversely proportional to the energy separation of the two states. Increasing the solvent polarizability decreases the energy gap leading to increased mixing. Extension of a relation between radiative lifetime and absorption $intensity^{4}$ permits an estimate of the energy gap between the states and the magnitude of the mixing matrix element.
URI: http://hdl.handle.net/1811/10046
Other Identifiers: 1977-MG-8
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