Received 20 December 2010
In the crystal structure of the title compound, C10H11NO3, the conformations of N-H and C=O bonds in the amide segment are anti to each other. Further, the conformations of the amide O atom and the carbonyl O atom of the acid segment are anti to each other and to the adjacent -CH2 groups. The C=O and O-H bonds of the acid group are in syn positions with respect to each other. In the crystal, the molecules are packed into infinite chains along the a axis through intermolecular N-HO and O-HO hydrogen bonds.
For our studies of the effect of substituents on the structures of anilides, see: Gowda et al. (2009, 2010a,b). For modes of interlinking carboxylic acids by hydrogen bonds, see: Leiserowitz (1976). For the packing of molecules involving dimeric hydrogen-bonded association of each carboxyl group with a centrosymmetrically related neighbor, see: Jagannathan et al. (1994).
Data collection: CrysAlis CCD (Oxford Diffraction, 2009); cell refinement: CrysAlis RED (Oxford Diffraction, 2009); data reduction: CrysAlis RED; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BQ2265 ).
BSS thanks the University Grants Commission, Government of India, New Delhi, for the award of a research fellowship under its faculty improvement program.
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