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Article Dans Une Revue Chemistry - A European Journal Année : 2020

Naphthyl-fused phosphepines: Luminescent contorted polycyclic P-heterocycles

Résumé

This article presents the synthesis of a new family of naphthyl-fused phosphepines through Ni-mediated C-C coupling. Interestingly, the chlorophosphine oxide intermediate shows strong resistance toward oxidation/hydrolysis owing to a combination of steric hindrance and pnictogen interactions. However, it can undergo substitution reactions under specific conditions. The optical/redox properties and the electronic structure of these new π-systems were studied experimentally (UV/Vis absorption, emission, cyclic voltammetry) and computationally (TD-DFT calculations, NICS investigation). Taking advantage of the luminescence of these derivatives, a blue-emitting OLED has been prepared, highlighting that these novel π-conjugated P-heterocycles appear to be promising building blocks for solid-state lighting applications.
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Dates et versions

hal-02394493 , version 1 (04-12-2019)

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Thomas Delouche, Réka Mokrai, Thierry Roisnel, Denis Tondelier, Bernard Geffroy, et al.. Naphthyl-fused phosphepines: Luminescent contorted polycyclic P-heterocycles. Chemistry - A European Journal, 2020, 26 (8), pp.1856 -1863. ⟨10.1002/chem.201904490⟩. ⟨hal-02394493⟩
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