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From the Single- to the Triple-Decker Sandwich. Effect of Stacking on the Redox and UV-Visible Spectroscopic Properties of Lutetium(III) 1,2-Naphthalocyaninate Complexes

Abstract : (1,2-Naphthalocyaninato)lutetium(III), bis(1,2-naphthalocyaninato)lutetium(III), and tris(1,2-naphthalocyaninato)-dilutetium(III) have been synthesized in good yields. These complexes were characterized by UV-visible, 1H NMR, and mass spectroscopies and by electrochemical techniques. Bis(1,2-naphthalocyaninato)lutetium(III) is compared to bis(2,3-naphthalocyaninato)lutetium(III): the good correspondance between the experimental data and theoretical results obtained by others is emphasized in this work. Stacking one to three macrocyclic rings is possible in the series of the 1,2-naphthalocyanine sandwich-like complexes with lutetium(III); as shown by UV-visible spectroelectrochemistry and voltammetry, this influences greatly the π-conjugated systems, modifying spectacularly their spectroscopic and redox properties.
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https://hal.univ-brest.fr/hal-01770743
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Submitted on : Thursday, April 19, 2018 - 10:58:23 AM
Last modification on : Friday, September 14, 2018 - 11:34:09 AM

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F. Guyon, A. Pondaven, J.-M. Kerbaol, Maurice l'Her. From the Single- to the Triple-Decker Sandwich. Effect of Stacking on the Redox and UV-Visible Spectroscopic Properties of Lutetium(III) 1,2-Naphthalocyaninate Complexes. Inorganic Chemistry, American Chemical Society, 1998, 37, pp.569--576. ⟨hal-01770743⟩

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