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Studies on Electronic Effects on the Singlet-Triplet Gap of Aryl-C4H3Si
Asian Journal of Chemistry
Divalent carbenes and their analogues are strongly reactive 1 . The cyclic completely conjugated species are important in the chemistry of divalent carbene intermediates 2 . These divalent structures were formerly described in terms of the Huckel 4n + 2 rule 3 . However, non-planar isomers are found energy minima for most of these singlet cyclic conjugated carbenes through semi-empirical studies 4 . The isolation of the stable five membered cyclic conjugated carbene is firstly reported bydoi:10.14233/ajchem.2013.14268 fatcat:3xblen4hsngxpotxvz7r3rqq2q