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High Photothermal Activity within Neutral Nickel Dithiolene Complexes Derived from Imidazolium-Based Ionic Liquids

Abstract : A new series of nickel N,N'-dialkylimidazolidine-2,4,5-trithione complexes ([Ni(R2timdt)2]) carrying linear or branched carbon chains (R = n-C4H9, n-C8H17, n-C12H25, n-C16H33, 2-ethylhexyl, 2-butyloctyl, phytanyl) have been obtained through an original synthetic pathway starting from easily available imidazolium-based ionic liquids. The chemical structures of these nickel complexes were confirmed by NMR and high-resolution mass spectroscopies as well as by X-ray analysis performed on single crystals. The complexes strongly absorb in the near-IR (NIR) region around 1000 nm, with high extinction coefficients reaching 80 000 M(-1) cm(-1). They are able to efficiently convert NIR light into heat under laser irradiation with very high photothermal conversion efficiencies (around 30%)
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01263047
Contributor : Laurent Jonchère <>
Submitted on : Wednesday, January 27, 2016 - 12:58:53 PM
Last modification on : Thursday, March 5, 2020 - 2:03:50 PM

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Kenny Mebrouk, Franck Camerel, Olivier Jeannin, Benoît Heinrich, Bertrand Donnio, et al.. High Photothermal Activity within Neutral Nickel Dithiolene Complexes Derived from Imidazolium-Based Ionic Liquids. Inorganic Chemistry, American Chemical Society, 2016, 55 (3), pp.1296-1303. ⟨10.1021/acs.inorgchem.5b02648⟩. ⟨hal-01263047⟩

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