Synthesis, Electronic Properties and OLED Devices of Chromophores Based on $\lambda ^5$‐Phosphinines

Gregor Pfeifer (1) , Faouzi Chahdoura (2) , Martin Papke (1) , Manuela Weber (1) , Rozsa Szücs (3) , Bernard Geffroy (4, 5) , Denis Tondelier (4) , László Nyulászi (3) , Muriel Hissler (2) , Christian Müller (1)

1 Freie Universität Berlin
2 ISCR - Institut des Sciences Chimiques de Rennes
3 BME - Budapest University of Technology and Economics [Budapest]
4 LPICM - Laboratoire de physique des interfaces et des couches minces [Palaiseau]
5 LICSEN - Laboratoire Innovation en Chimie des Surfaces et NanoSciences

A new series of 2,4,6-triaryl-λ -phosphinines have been synthesized that contain different substituents both on the carbon backbone and the phosphorus atom of the six-membered heterocycle. Their optical and redox properties were studied in detail, supported by in-depth theoretical calculations. The modularity of the synthetic strategy allowed the establishment of structure-property relationships for this class of compounds and an OLED based on a blue phosphinine emitter could be developed for the first time.

Keywords: heterocycles; phosphinine; OLED; DFT calculations; pi-systems

Domains: Material chemistry

Gregor Pfeifer, Faouzi Chahdoura, Martin Papke, Manuela Weber, Rozsa Szücs, et al.. Synthesis, Electronic Properties and OLED Devices of Chromophores Based on $\lambda ^5$‐Phosphinines. Chemistry - A European Journal, 2020, 26 (46), pp.10534-10543. ⟨10.1002/chem.202000932⟩. ⟨cea-02495105⟩