PANCHENKO, Pavel A.; FEDOROV, Yuri V.; FEDOROVA, Olga A.; JONUSAUSKAS, Gediminas

doi:10.1039/C5CP03510D

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PANCHENKO, Pavel A.
Mendeleev University of Chemical Technology of Russia
A. N. Nesmeyanov Institute of Organoelement Compounds [INEOS]

FEDOROV, Yuri V.
A. N. Nesmeyanov Institute of Organoelement Compounds [INEOS]

FEDOROVA, Olga A.
A. N. Nesmeyanov Institute of Organoelement Compounds [INEOS]

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Physical Chemistry Chemical Physics. 2015-09-21, vol. 17, n° 35, p. 22457-23282

Royal Society of Chemistry

Résumé en anglais

Novel bi-chromophoric naphthalimide derivatives containing benzo-15-crown-5 and N-phenyl-aza-15-crown-5 receptor moieties BNI2 and BNI3 were designed and prepared. Significant Fö rster resonance energy transfer (FRET) from donor (D) amido-naphthalimide to acceptor (A) amino-naphthalimide chromophores as well as photoinduced electron transfer (PET) between the N-aryl receptor and amido-naphthalimide fragment was revealed by the steady-state and time-resolved UV/Vis absorption and fluorescence spectroscopy. Upon the addition of alkaline-earth metal perchlorates to an acetonitrile solution of ligands, FRET mediated fluorescence enhancement was observed, which was a result of inhibition of the PET competitive deactivation pathway. The studied compounds provide an opportunity to register a two-channel fluorescence response upon selective excitation of either of the photoactive units and, thus, might be of interest as ratiometric probes.< Réduire

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FRET versus PET: ratiometric chemosensors assembled from naphthalimide dyes and crown ethers

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