5-Fluoro-8,8-dimethyl-7-oxa-3,9-diazabicyclo[4.3.0]nona-5,9-diene-2,4-dione (C8H7FN2O3): a Novel Product from Pyrolysis of N-Isopropylidene-O-tetrafluoro-4-pyridylhydroxylamine in Glass

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Journal Title, Volume, Page: 
Cta Crystallographica Section C-Crystal Structure Communications Volume: 51, Pages: 515-517, Part 3
Year of Publication: 
Waheed J. Jondi,
Current Affiliation: 
Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine
R.E. Banks
R.G. Pritchard
A.E. Tipping
Preferred Abstract (Original): 
  • Slight delocalization and strategically placed double bonds have combined to make this unique ring system planar. Pairs of molecules interact across a crystallographic inversion centre to form hydrogen-bonded dimers utilizing a ketonic O atom and an adjacent amine H atom [N ... O 2.907(3), N-H 0.83(3), H ... O 2.08 (3) Angstrom; N-H ... O 172(3)degrees].