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Mono- and Diplatinum Polyynediyl Complexes as Potential Push–Pull Chromophores: Synthesis, Characterization, TD-DFT Modeling, and Photophysical and NLO Properties

Abstract : The syntheses, photophysical and electrochemical characterizations of four new mono- and diplatinum polyynediyl complex chromophores end-capped with diphenylpyranylidene and pentafluorophenyl moieties are described. The nonlinear optical properties (NLO) of these compounds have been investigated using the electric-field-induced second harmonic generation (EFISH) technique. While the inductive electron-withdrawing pentafluorophenyl ligand, the length of the polyyne linkers, and the number of platinum centers do not seem to significantly affect the NLO responses of these complexes, their structural configuration (V-shape vs linear shape) plays a significant role.
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Submitted on : Thursday, September 20, 2018 - 12:49:26 PM
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Sébastien Gauthier, Ariel Porter, Sylvain Achelle, Thierry Roisnel, Vincent Dorcet, et al.. Mono- and Diplatinum Polyynediyl Complexes as Potential Push–Pull Chromophores: Synthesis, Characterization, TD-DFT Modeling, and Photophysical and NLO Properties. Organometallics, American Chemical Society, 2018, 37 (14), pp.2231-2244. ⟨10.1021/acs.organomet.8b00223⟩. ⟨hal-01834786⟩

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