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Synthesis and photophysical properties of extended pi conjugated naphthalimides

Remy, C; Allain, C; Leray, I, Photochemical & Photobiological Sciences, 2017, 16, 539-546.

A series of π conjugated naphthalimide derivatives having an imide group as an acceptor conjugated with a methoxy arylethynyl or a methoxyphenyl triazole as a donor were prepared by Sonogashira coupling or “click” chemistry. Their photophysical properties were investigated by steady state and time resolved fluorescence spectroscopy and modelled by TD-DFT calculations. Compound Naphth-AlkyneOMe has a high fluorescence quantum yield and displays efficient photoinduced charge transfer in solution as well as in the powder state. Compound Naphth-TriazoleOMe exhibits a very high Stokes shift and its fluorescence quantum yield is low, which can be rationalized by theoretical calculations.

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Publication

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Paru le 1 avril 2017

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DOI: 10.1039/c6pp00372a