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Quinoline-derived two-photon sensitive quadrupolar probes

Abstract : Quadrupolar probes derived from 8-dimethylamino-quinoline (8-DMAQ) having a pegylated fluorene core were prepared and studied under "one-photon" (λ=365 nm) and "two-photon" (TP) (λ=730 nm) irradiation conditions. Compound 1 a was identified as the most efficient probe by UV activation that showed sequential release of acetic acid as a model. Although the probe showed high two-photon absorption it stayed inert under femtosecond irradiation conditions. Fast and selective photolysis was observed, however, by using picosecond irradiation conditions with a remarkably high TP uncaging cross-section (δu =2.3 GM).
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https://hal-normandie-univ.archives-ouvertes.fr/hal-02383445
Contributor : Thibault Gallavardin <>
Submitted on : Wednesday, November 27, 2019 - 5:18:48 PM
Last modification on : Friday, April 10, 2020 - 4:58:30 PM

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Petra Dunkel, Christine Tran, Thibault Gallavardin, Hamid Dhimane, David Ogden, et al.. Quinoline-derived two-photon sensitive quadrupolar probes. Organic and Biomolecular Chemistry, Royal Society of Chemistry, 2014, 12 (48), pp.9899-9908. ⟨10.1039/C4OB01551G⟩. ⟨hal-02383445⟩

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