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A tropylium annulated N-heterocyclic carbene.
Appel S , Brüggemann P , Ganter C . Appel S , et al. Chem Commun (Camb). 2020 Aug 14;56(63):9020-9023. doi: 10.1039/d0cc04482b. Epub 2020 Jul 8. Chem Commun (Camb). 2020. PMID: 32639486