- Ultrafast investigation of photoinduced charge transfer in aminoanthraquinone pharmaceutical product.
Ultrafast investigation of photoinduced charge transfer in aminoanthraquinone pharmaceutical product.
Scientific reports (2017-02-25)
Song Zhang, Simei Sun, Miaomiao Zhou, Lian Wang, Bing Zhang
PMID28233835
RÉSUMÉ
We investigated the mechanism of intramolecular charge transfer and the following radiationless dynamics of the excited states of 1-aminoanthraquinone using steady state and time-resolved absorption spectroscopy combined with quantum chemical calculations. Following photoexcitation with 460 nm, conformational relaxation via twisting of the amino group, charge transfer and the intersystem crossing (ISC) processes have been established to be the major relaxation pathways responsible for the ultrafast nonradiative of the excited S
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