N-Phenylmaleamic acid

The two independent molecules in the title compound (systematic name: 4-amino-4-oxobut-2-enoic acid), C10H9NO3, are both essentially planar (r.m.s. deviations = 0.05 and 0.06 Å). In both molecules, the –OH group forms an intramolecular hydrogen bond to the am...

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Bibliographic Details
Main Authors: Seik Weng Ng, Kong Mun Lo
Format: Article
Language:English
Published: International Union of Crystallography 2009-05-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S1600536809014627
Description
Summary:The two independent molecules in the title compound (systematic name: 4-amino-4-oxobut-2-enoic acid), C10H9NO3, are both essentially planar (r.m.s. deviations = 0.05 and 0.06 Å). In both molecules, the –OH group forms an intramolecular hydrogen bond to the amide O atom. Adjacent molecules are linked by N—H...O hydrogen bonds into a flat ribbon that runs along the a axis of the monoclinic unit cell.
ISSN:1600-5368