For three indolylfulgides the quantum efficiency of the ring-opening reaction upon pre-excitation is investigated in a multipulse experiment. The quantum efficiency grows by factor of up to 3.4, when the pre-excitation pulse immediately precedes the excitation process. The change in quantum efficiency after pre-excitation is discussed as a function of reaction time, steady-state quantum efficiency and energetic barriers in the excited electronic state. The observed differences can be explained by the molecular properties of the investigated indolylfulgides.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2877210 | PMC |
| http://dx.doi.org/10.1016/j.cplett.2010.02.071 | DOI Listing |
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