3-Hydroxypyridinium-2-carboxylate
نویسندگان
چکیده
Comparable to many amino acids, the title compound, C(6)H(5)NO(3), is a substitution product of picolinic acid. The mol-ecule shows approximate non-crystallographic C(s) symmetry. Like many amino acids, the mol-ecule is present in its zwitterionic state. Intra- as well as inter-molecular hydrogen bonds are observed, the latter connecting the mol-ecules into zigzag chains along the crystallographic b axis. An inter-molecular C-C distance of only 3.368 (2) Å exclusively involving carbon atoms of aromatic rings (centroid-centroid separation = 3.803 Å) is indicative of π-π inter-actions connecting the mol-ecules into stacks along the crystallographic a axis.
منابع مشابه
2-Hydroxypyridinium p-toluenesulfonate
In the title molecular salt, C(5)H(6)NO(+)·C(7)H(7)O(3)S(-), the cations and anions are connected by N-H⋯O and O-H⋯O hydrogen bonds, forming [100] chains.
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