
%0 Journal Article
%A Harrowfield, JM 
%A Skelton, BW 
%A Soudi, AA 
%A White, AH 
%T Crystal Structure of Alloxan Monohydrate: A Redetermination
%J Australian Journal of Chemistry
%D 1989/10/01
%V 42
%N 10
%P 1795-1798
%K 
%R https://doi.org/10.1071/CH9891795
%U https://www.publish.csiro.au/paper/CH9891795 
%X The structure of the title compound, C4H4N2O5, has been redetermined by single-crystal X-ray diffraction methods at c. 295 K. Crystals are triclinic, P1, a 8.217(2), b 6.809(2), c 5.765(4) Å, &#945; 66.49(3),&#946; 81.87(3), &#947; 74.35(2)º, Z= 2; the structure was refined by full-matrix least squares to a residual of 0.042 for 2190 independent 'observed' reflections, typical non-hydrogen interatomic distances being determined with estimated standard deviations of 0.001 Å. Together with the recent precise redetermination of the structure of alloxan , these results allow comparison of the geometries of essentially planar polycarbonyl (-hydrate) arrays with those of long-chain arrays previously recorded. 
