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Bis(2-amino-4-methyl-pyridinium) terephthalate tetra-hydrate.

ABSTRACT: In the crystal structure of the title salt, 2C(6)H(9)N(2) (+)·C(8)H(4)O(4) (2-)·4H(2)O, the terephthalate carboxyl-ate groups inter-acts with the 2-amino-4-methyl-pyridinium cations via a pair of N-H?O hydrogen bonds, forming an R(2) (2)(8) ring motif. The water mol-ecules form an R(6) (6)(12) ring motif through O-H?O hydrogen bonds and these motifs are fused, forming a supra-molecular chain along the c axis. The R(2) (2)(8) and R(6) (6)(12) ring motifs are connected via O-H?O hydrogen bonds. In addition, ?-? stacking inter-actions are observed between the pyridinium rings [centroid-centroid distance = 3.522?(12)?Å].

SUBMITTER: Hemamalini M

PROVIDER: S-EPMC3007316 | biostudies-literature | 2010 Jul

REPOSITORIES: biostudies-literature

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Bis(2-amino-4-methyl-pyridinium) terephthalate tetra-hydrate.

Hemamalini Madhukar M Fun Hoong-Kun HK

Acta crystallographica. Section E, Structure reports online 20100707 Pt 8

In the crystal structure of the title salt, 2C(6)H(9)N(2) (+)·C(8)H(4)O(4) (2-)·4H(2)O, the terephthalate carboxyl-ate groups inter-acts with the 2-amino-4-methyl-pyridinium cations via a pair of N-H⋯O hydrogen bonds, forming an R(2) (2)(8) ring motif. The water mol-ecules form an R(6) (6)(12) ring motif through O-H⋯O hydrogen bonds and these motifs are fused, forming a supra-molecular chain along the c axis. The R(2) (2)(8) and R(6) (6)(12) ring motifs are connected via O-H⋯O hydrogen bonds. In ...[more]

PMID: 21588255

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