title: Zwitterionic 4-piperidinecarboxylic acid monohydrate.
abstract: The title compound, 4-piperidiniocarboxylate (isonipecotic acid), crystallizes as a zwitterion and incorporates one water molecule, i.e. C(6)H(11)NO(2).H(2)O. The piperidine ring adopts a chair conformation and the alpha-carboxylate group is oriented in the equatorial position. The combination of the interactions between the alpha-amino and alpha-carboxylate groups and the water molecules builds a three-dimensional assembly of hydrogen bonds.
authors.affiliation: Laboratorio de Cristalografía, Facultad de Ciencias, Departamento de Química, Universidad de Los Andes, Mérida 5101, Venezuela.
authors.forename: G
authors.initials: G
authors.lastname: Delgado
authors.forename: A J
authors.initials: AJ
authors.lastname: Mora
authors.forename: A
authors.initials: A
authors.lastname: Bahsas