
TY  - JOUR
A1  - Raston, CL 
A1  - White, AH 
T1  - Crystal structure of 3-Oxo-2-phenyl-3H-pyrazolo[1,2-a]pyrazol-4-io-1-olate
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1984
VL  - 37
IS  - 12
SP  - 2577
EP  - 2582
KW  - 
UR  - https://doi.org/10.1071/CH9842577 
N2  - 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. 
ER  -

