4-Amino-pyridinium 4-nitro-benzoate 4-nitro-benzoic acid.

ABSTRACT: The asymmetric unit of the title compound, C(5)H(7)N(2) (+)·C(7)H(4)NO(4) (-)·C(7)H(5)NO(4), consists of an amino-pyridinium cation, a 4-nitro-benzoate anion and a neutral 4-nitro-benzoic acid mol-ecule. The pyridine ring forms dihedral angles of 64.70?(5)° and 70.37?(5)°, respectively, with the benzene rings of 4-nitro-benzoic acid and 4-nitro-benzoate. In the crystal structure, the cations, anions and the neutral 4-nitro-benzoic acid mol-ecules are linked by O-H?O and N-H?O hydrogen bonds, forming a two-dimensional network parallel to (001). Adjacent networks are cross-linked via C-H?O hydrogen bonds and ?-? stacking inter-actions [centroid-centroid distances 3.6339?(6) and 3.6566?(6)?Å].

SUBMITTER: Quah CK 

PROVIDER: S-EPMC2959422 | biostudies-other | 2008

REPOSITORIES: biostudies-other