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Article Dans Une Revue Chemistry - A European Journal Année : 2021

Taking advantage of ortho‐ and peri‐substitution to design nine‐membered P,O,Si‐heterocycles

Résumé

A family of cyclic phosphine-disiloxane featuring peri-substituted naphthyl(Nap)/acenaphthyl(Ace) scaffolds has been prepared and fully characterized including X-ray structure, which enables a detailed structural analysis. This straightforward synthesis takes advantage of both ortho-and peri-substitution of Nap/Ace-substituted phosphine oxides. The synthetic method allows diversifying the polycyclic aromatic platform (Nap and Ace) as well as the Si substituents (Me and Ph). Despite a strong steric congestion, the P-atom remains reactive toward oxidation or coordination. In particular, Au(I) complex could be prepared. All the compounds display absorption/luminescence in the UV-Vis range. Surprisingly, the P-trivalent derivatives display unexpected luminescence in the green in solidstate.

Domaines

Chimie organique
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Dates et versions

hal-03244130 , version 1 (01-06-2021)

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Thomas Delouche, Elsa Caytan, Cassandre Quinton, Thierry Roisnel, Marie Cordier, et al.. Taking advantage of ortho‐ and peri‐substitution to design nine‐membered P,O,Si‐heterocycles. Chemistry - A European Journal, 2021, 27 (44), pp.11391-11397. ⟨10.1002/chem.202101184⟩. ⟨hal-03244130⟩
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