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Picosecond spectroscopy of electronically excited singlet states in biphenylene

URN to cite this document:
urn:nbn:de:bvb:355-epub-55337
DOI to cite this document:
10.5283/epub.5533
Elsaesser, T. ; Laermer, F. ; Kaiser, W. ; Dick, Bernhard ; Niemeyer, M. ; Luettke, W.
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Date of publication of this fulltext: 05 Aug 2009 13:50


Abstract

A photophys. properties of biphenylene-h8 and biphenylene-d8 in soln. at room temp. was investigated with picosecond absorption and fluorescence spectroscopy. The weak fluorescence with complex vibrational structure originates entirely from the S1 state. It decays monoexponentially with a lifetime of 240 +- 20 ps. Upon photoexcitation to S2 no emission attributable to the S2 state was obsd. ...

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