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Rapid Excited State Deactivation of BODIPY Derivatives by a Boron Bound Catechol.

08:00 EDT 29th March 2019 | BioPortfolio

Summary of "Rapid Excited State Deactivation of BODIPY Derivatives by a Boron Bound Catechol."

The excited state dynamics and energetics of a series of BODIPY derived chromophores bound to a catechol at the boron position were investigated with a combination of static and time resolved spectroscopy, electrochemistry, and density functional theory calculations. Compared to the difluoro-BODIPY derived parent compounds, addition of the catechol at the boron reduced the excited state lifetime by three orders of magnitude. Deactivation of the excited state proceeded through an intermediate charge transfer state accessed from the initial optically excited π* state in less than one picosecond. Despite differences in structure of the BODIPY derivatives, and absorption maxima that spanned the visible portion of the spectrum, all compounds exhibited the same, rapid, excited state deactivation mechanism, suggesting generality of the observed dynamics within this class of compounds.

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Name: The journal of physical chemistry letters
ISSN: 1948-7185
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