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ABSTRACT:
SUBMITTER: Portalone G
PROVIDER: S-EPMC2977654 | biostudies-literature | 2009 Apr
REPOSITORIES: biostudies-literature
Acta crystallographica. Section E, Structure reports online 20090402 Pt 5
The crystal structure of the title compound, C(7)H(5)NO(4), was first reported by Kurahashi, Fukuyo & Shimada [(1967). Bull. Chem. Soc. Jpn, 40, 1296]. It has been re-examined, improving the precision of the derived geometric parameters. The asymmetric unit comprises a non-planar independent mol-ecule, as the nitro and the carb-oxy substituents force each other to be twisted away from the plane of the aromatic ring by 54.9 (2) and 24.0 (2)°, respectively. The mol-ecules form a conventional dimer ...[more]