Exocyclic delocalization at the expense of aromaticity in 3,5-bis(π-donor) substituted pyrazolium ions and corresponding cyclic bent allenes

1. Fernández, I.
2. Dyker, C.A.
3. DeHope, A.
4. Donnadieu, B.
5. Frenking, G.
6. Bertrand, G.