Organic Electron Acceptors Comprising a Dicyanomethylene‐Bridged 
Acridophosphine Scaffold: The Impact of the Heteroatom

Schaub, Tobias A.; Brülls, Steffen M.; Dral, Pavlo O.; Hampel, Frank; Maid, Harald; Kivala, Milan

doi:10.1002/chem.201701412

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Organic Electron Acceptors Comprising a Dicyanomethylene‐Bridged Acridophosphine Scaffold: The Impact of the Heteroatom

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Dral, Pavlo O.
Research Department Thiel, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

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Citation

Schaub, T. A., Brülls, S. M., Dral, P. O., Hampel, F., Maid, H., & Kivala, M. (2017). Organic Electron Acceptors Comprising a Dicyanomethylene‐Bridged Acridophosphine Scaffold: The Impact of the Heteroatom. Chemistry – A European Journal, 23(29), 6988-6992. doi:10.1002/chem.201701412.

Cite as: https://hdl.handle.net/21.11116/0000-0000-FFD0-6

Abstract

Stable two‐electron acceptors comprising a dicyanomethylene‐bridged acridophosphine scaffold were synthesized and their reversible reduction potentials were efficiently tuned through derivatization of the phosphorus center. X‐ray crystallographic analysis combined with NMR, UV/Vis, IR spectroscopic, and electrochemical studies, supported by theoretical calculations, revealed the crucial role of the phosphorus atom for the unique redox, structural, and photophysical properties of these compounds. The results identify the potential of these electron deficient scaffolds for the development of functional n‐type materials and redox active chromophores upon further functionalization.