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Photoluminescence of molecular C70 at 1.5 K. On the nature of the lowest excited states

✍ Scribed by J.B.M. Warntjes; I. Holleman; G. Meijer; E.J.J. Groenen

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 512 KB
Volume: 261
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(96)00995-5

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✦ Synopsis

We report Shpol'skii-type luminescence spectra of C70 in n-pentane at 1.5 K with vibronic linewidths of 3 cm -~. The vibronic structure of both fluorescence and phosphorescence has been unravelled. The fluorescence intensity largely shows up in vibronic bands corresponding to transitions to ground-state infrared-active vibrational modes and it is concluded that the first excited singlet state of C70 in alkanes is of ~2 character.

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