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Journal Article

Lowest Excited Singlet State of C60: A Vibronic Analysis of the Fluorescence

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van den Heuvel, D. J., van den Berg, G. J. B., Groenen, E. J. J., Schmidt, J., Holleman, I., & Meijer, G. (1995). Lowest Excited Singlet State of C60: A Vibronic Analysis of the Fluorescence. The Journal of Physical Chemistry, 99(30), 11644-11649. doi:10.1021/j100030a004.

Cite as: https://hdl.handle.net/21.11116/0000-000C-0837-E
The fluorescence and fluorescence-excitation spectra of C60 in a hydrocarbon glass at 1.2 K are reported.The fluorescence spectrum resembles that of a molecular X-trap in crystalline C60. The vibronic bands in these spectra are assigned, and the intensity distribution among the false origins points to vibronic coupling within the singlet manifold. The lowest excited singlet state of Cm shows predominantly T1g and G9 character. Additionally, we show that a reduction of the symmetry of C60 by either an intra- or an intermolecular perturbation leads to a fluorescence spectrum with a strong 0-0 transition and a different vibronic structure.