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8-Methyl-3,N-bis(trifluoroacetyl)oxazolo[3,2-a]pyridinium-2-imidate
2007
Acta Crystallographica Section E
Key indicators: single-crystal X-ray study; T = 100 K; mean (C-C) = 0.002 Å; R factor = 0.048; wR factor = 0.110; data-to-parameter ratio = 17.0. The title compound, C 12 H 6 F 6 N 2 O 3 , belongs to a class of mesoionic compounds. The crystal packing exibits a short intermolecular C(heterobicycle)Á Á ÁO(N-trifluoroacetyl) contact of 2.9573 (14) Å , which indicates the distribution of the positive charge in the N C O chain of the heterobicycle. Related literature For the crystal structures of
doi:10.1107/s1600536807036227
fatcat:ira4fwzmmzez5l4mnmcq3z25f4