On the relationship between fluorescence and molecular geometry solvent-assisted formation of luminescent intramolecular exciplexes from anthronyl-substituted anthracenes |
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| Authors: | Hans-Dieter Becker Kjell Sandros |
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| Institution: | Department of Organic and Physical Chemistry, Chalmers University of Technology, and University of Gothenburg, S-402 20 Gothenburg, Sweden |
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| Abstract: | The fluorescence efficiency of 1′,2′-dihydro-spiroanthracene-9(10H),3′-3H]benzde]anthracen]-10-one in 10 solvents of varying dielectric constant has been investigated. The observed exciplex luminescence is attributed to a solvent-assisted intramolecular charge-transfer interaction between the ground-state anthrone and excited-state anthracene moietis. The geometry of the exciplex is suggested to resemble that of a σ-π complex. |
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