Selective fluorescence turn-on of a prefluorescent azomethine with Zn |
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| Authors: | Étienne Knipping Ivan Ulliel Roche Stéphane DufresneNicholas McGregor WG Skene |
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| Institution: | a Laboratoire de Caractérisation Photophysique des Matériaux Conjugués, Département de chimie, Université de Montréal, CP 6128, succ. Centre-ville, Montréal, Québec, Canada H3C 3J7
b École Nationale Supérieure de Chimie, Biologie et Physique (de Bordeaux), Bordeaux 33607, PESSAC CEDEX, France |
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| Abstract: | A prefluorescent conjugated azomethine (4) was prepared by condensing 8-hydroxyquinoline-5-carbaldehyde with 2-amine thiophene. The fluorescence of the azomethine was quenched in organic solvents including dichloromethane, methanol, DMSO, and DMF. However, the fluorescence of 4 was selectively revived in the presence of zinc and an absolute quantum yield Φfl = 0.15 was measured. |
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| Keywords: | Azomethine Fluorescence revival Selective fluorescence turn-on Imine Hydroxyquinoline |
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