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Naphthyl-Fused Phosphepines: Luminescent Contorted Polycyclic P-Heterocycles.

Authors :
Delouche T
Mokrai R
Roisnel T
Tondelier D
Geffroy B
Nyulászi L
Benkő Z
Hissler M
Bouit PA
Source :
Chemistry (Weinheim an der Bergstrasse, Germany) [Chemistry] 2020 Feb 06; Vol. 26 (8), pp. 1856-1863. Date of Electronic Publication: 2020 Jan 24.
Publication Year :
2020

Abstract

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.<br /> (© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)

Details

Language :
English
ISSN :
1521-3765
Volume :
26
Issue :
8
Database :
MEDLINE
Journal :
Chemistry (Weinheim an der Bergstrasse, Germany)
Publication Type :
Academic Journal
Accession number :
31799704
Full Text :
https://doi.org/10.1002/chem.201904490