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Fluorescence excitation spectroscopy of [2.2]paracyclophane in supersonic jets

✍ Scribed by T.-L. Shen; J.E. Jackson; J.-H. Yeh; D.G. Nocera; G.E. Leroi

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 731 KB
Volume: 191
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(92)85384-m

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✦ Synopsis

The fluorescence excitation spectrum of [2.2]paracyclophane has been recorded from 30675 to 32570 cm-'. Two inter-ring vibrations, the breathing mode and the twisting mode, are responsible for the extensive vibronic structure in this lowest-lying electronic transition. The breathing mode gives rise to a long dominant progression with origin at 30772 cm-' and fairly even separations of 235 cm-'. The remaining progressions are built on this breathing mode with several binary combinations of the twist. Theoretical calculations support our vibronic analysis.

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