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Picosecond time-resolved absorption measurements on the excited singlet state of biphenylene

✍ Scribed by Anunay Samanta; Chelladurai Devadoss; Richard W. Fessenden

Publisher: Elsevier Science
Year: 1990
Tongue: English
Weight: 510 KB
Volume: 169
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(90)87070-8

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✦ Synopsis

The photophysical behavior of biphenylene has been investigated employing picosecond time-resolved absorption measurements over the range 400-760 nm. The temporal behavior of the different absorption maxima suggest that the transient absorption results from two different configurations of biphenylene. It is estimated that the configuration changes within I S-30 ps after excitation. The lifetime of the relaxed emitting state of the compound is measured to be 245 k 15 ps.

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