2-(4-Carboxypiperidinium-1-yl)pyridine-3-carboxylate
oleh: Runshan Shang, Weiwei Li, Chunhua Ge, Mingjun Sun, Ping Fan
| Format: | Article |
|---|---|
| Diterbitkan: | International Union of Crystallography 2012-03-01 |
Deskripsi
The title compound, C12H14N2O4, crystallizes as a zwitterion. A negative charge is delocalized in the deprotonated carboxyl group attached to the pyridine ring. The piperidine N atom accepts a proton and the ring is transformed into a piperidinium cation. There is an intramolecular N—H...O hydrogen bond between the protonated NH and a carboxylate O atom. In the crystal, an O—H...O hydrogen bond between the carboxyl group and the carboxylate O atom of another molecule generates a helix along the b axis.