In the cation of the title compound, C(9)H(11)N(2)O(4) (+)·ClO(4) (-), the conformation is stabilized by an intra-molecular N-H⋯O hydrogen bond. In the crystal packing, centrosymmetrically related cations inter-act through inter-molecular O-H⋯O hydrogen bonds involving the carb-oxy groups, forming dimers. The dimers and the perchlorate anions are further linked into layers parallel to the ab plane by C-H⋯O and N-H⋯O hydrogen-bonding inter-actions.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2980062 | PMC |
| http://dx.doi.org/10.1107/S1600536809051319 | DOI Listing |
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