title: Bis(4-carboxy-piperidinium) 5-nitro-isophthalate.
abstract: Cocrystallization of 4-carboxypiperdine with 5-nitro-isophthalic acid afforded the title salt, 2C(6)H(12N)O(2) (+)·C(8)H(3)NO(6) (2-), in which the heterocyclic N atoms are protonated and the carboxylic acid groups are deprotonated. In the crystal, inter-molecular N-H⋯O and O-H⋯O hydrogen-bonding inter-actions assemble the ions into a three-dimensional network.
authors.affiliation: College of Chemistry, Tianjin Key Laboratory of Structure and Performance for Functional Molecule, Tianjin Normal University, Tianjin 300387, People's Republic of China.
authors.forename: Na
authors.initials: N
authors.lastname: Li