Vibronic Splitting of the Electronic Origin in Two Conformers of the 3‐Tolunitrile Dimer
Jascha Martini,
Jan Ortlepp,
Christian Henrichs
et al.
Abstract:3‐tolunitrile (3‐TN) can from three different dimers, which differ in the relative orientation of the methyl groups. We determined the geometry changes of two of these conformers of 3‐TN upon electronic excitation via a Franck‐Condon fit of the vibronic intensities in the fluorescence emission spectra. Both aromatic rings expand upon electronic excitation, showing a delocalized one‐photon excitation of the cluster. The conformer with the smaller COM distance shows an unusual order of the split components of th… Show more
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