Abstract
We have measured, by fluorescence, the relaxation times of the excited states of the two DODCI isomers in solution in ethanol. Excitation with a single pulse gives only the excited state of the normal form with τ f = (1.2 ± 0.3)ns. Excitation with a train of pulses leads to build-up of the photoisomer and the relaxation time of its excited state is τ f = (420 ± 60)ps.
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