Crystal structure of zymonic acid and a redetermination of its precursor, pyruvic acid

Heger, D.; Eugene, A.J.; Parkin, S.R.; Guzman, M.I.

doi:10.1107/S2056989019007072

Acta Crystallographica Section E
Acta Crystallographica
Section E CRYSTALLOGRAPHIC COMMUNICATIONS

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Figure 3
The $[R_{2}^{2}]$ (8) dimer of zymonic acid. Unlabeled atoms are related to their labeled counterparts by a crystallographic twofold axis (1 − x, y, $[{3\over 2}]$ − z). This uncommon symmetry [for an $[R_{2}^{2}]$ (8) dimer] forces the O—H⋯O hydrogen bonds involved to be 50:50 disordered about the twofold axis.

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

Volume 75| Part 6| June 2019| Pages 858-862

https://doi.org/10.1107/S2056989019007072

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