
%0 Journal Article
%A Raston, CL 
%A White, AH 
%T Crystal structure of 3-Oxo-2-phenyl-3H-pyrazolo[1,2-a]pyrazol-4-io-1-olate
%J Australian Journal of Chemistry
%D 1984/12/01
%V 37
%N 12
%P 2577-2582
%K 
%R https://doi.org/10.1071/CH9842577
%U https://www.publish.csiro.au/paper/CH9842577 
%X The crystal structure of the title compound, C12H8N2O2, has been determined by single crystal X-ray diffraction methods at 295 K and refined by least-squares methods to a conventional residual of 0.050 for 1208 independent 'observed' reflections. Crystals are monoclinic, P21/a, a 14.375(10), b 6.330(8), c 10.780(8) Å, &#946; 102.52(6)º, Z = 4. The molecular skeleton is substantially planar (&#963;(non-hydrogen atoms), 0.07 Å) with a delocalization pattern representative of a betaine comprising a pyrazolinium cation and a delocalized ,&#946;-diketone rather than an 8 &#960;-electron delocalized system. 
