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Durham University

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Publication details for Dr Basile Curchod

Eymann, Leonard Y. M., Varava, Paul, Shved, Andrei M., Curchod, Basile F. E., Liu, Yizhu, Planes, Ophelie M., Sienkiewicz, Andrzej, Scopelliti, Rosario, Fadaei Tirani, Farzaneh & Severin, Kay (2019). Synthesis of Organic Super-Electron-Donors by Reaction of Nitrous Oxide with N‐Heterocyclic Olefins. Journal of the American Chemical Society 141(3): 17112-17116.

Author(s) from Durham


The reaction of nitrous oxide (N2O) with N-heterocyclic olefins (NHOs) results in cleavage of the N–O bond and formation of azo-bridged NHO dimers. The latter represent very electron-rich compounds with a low ionization energy. Cyclic voltammetry studies show that the dimers can be classified as new organic super-electron-donors, with a reducing power similar to what is found for tetraazafulvalene derivatives. Mild oxidants are able to convert the neutral dimers into radical cations, which can be isolated. Further oxidation gives stable dications.