Activation of BODIPY fluorescence by the photoinduced dealkylation of a pyridinium quencher

Sherif Shaban Ragab; Subramani Swaminathan; James D. Baker; Françisco M. Raymo

doi:10.1039/c3cp51580j

Activation of BODIPY fluorescence by the photoinduced dealkylation of a pyridinium quencher

Sherif Shaban Ragab, Subramani Swaminathan, James D. Baker, Françisco M. Raymo

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

The photoinduced cleavage of a 2-nitrobenzyl group from a pyridinium quencher covalently attached to the meso position of a BODIPY fluorophore activates the emission of the latter. This photochemical transformation prevents the transfer of one electron from the BODIPY platform to its heterocyclic appendage upon excitation and, as a result, permits the radiative deactivation of the excited fluorophore. This versatile mechanism for fluorescence switching can translate into the realization of an entire family of photoactivatable fluorophores based on the outstanding photophysical properties of BODIPY chromophores.

Original language	English (US)
Pages (from-to)	14851-14855
Number of pages	5
Journal	Physical Chemistry Chemical Physics
Volume	15
Issue number	36
DOIs	https://doi.org/10.1039/c3cp51580j
State	Published - Sep 28 2013

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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abstract = "The photoinduced cleavage of a 2-nitrobenzyl group from a pyridinium quencher covalently attached to the meso position of a BODIPY fluorophore activates the emission of the latter. This photochemical transformation prevents the transfer of one electron from the BODIPY platform to its heterocyclic appendage upon excitation and, as a result, permits the radiative deactivation of the excited fluorophore. This versatile mechanism for fluorescence switching can translate into the realization of an entire family of photoactivatable fluorophores based on the outstanding photophysical properties of BODIPY chromophores.",

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AU - Swaminathan, Subramani

AU - Baker, James D.

AU - Raymo, Françisco M.

PY - 2013/9/28

Y1 - 2013/9/28

N2 - The photoinduced cleavage of a 2-nitrobenzyl group from a pyridinium quencher covalently attached to the meso position of a BODIPY fluorophore activates the emission of the latter. This photochemical transformation prevents the transfer of one electron from the BODIPY platform to its heterocyclic appendage upon excitation and, as a result, permits the radiative deactivation of the excited fluorophore. This versatile mechanism for fluorescence switching can translate into the realization of an entire family of photoactivatable fluorophores based on the outstanding photophysical properties of BODIPY chromophores.

AB - The photoinduced cleavage of a 2-nitrobenzyl group from a pyridinium quencher covalently attached to the meso position of a BODIPY fluorophore activates the emission of the latter. This photochemical transformation prevents the transfer of one electron from the BODIPY platform to its heterocyclic appendage upon excitation and, as a result, permits the radiative deactivation of the excited fluorophore. This versatile mechanism for fluorescence switching can translate into the realization of an entire family of photoactivatable fluorophores based on the outstanding photophysical properties of BODIPY chromophores.

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Activation of BODIPY fluorescence by the photoinduced dealkylation of a pyridinium quencher

Abstract

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