2-Amino-5-methyl-pyridinium 3-carb-oxy-4-hy-droxy-benzene-sulfonate.

ABSTRACT: The asymmetric unit of the title salt, C(6)H(9)N(2) (+)·C(7)H(5)O(6)S(-), contains two crystallographically independent 2-amino-5-methylpyridinium cations and two sulfosalicylate anions. In the crystal structure, the sulfonate group of each 3-carb-oxy-4-hy-droxy-benzene-sulfonate anion inter-acts with the corresponding 2-amino-5-methyl-pyridinium cation via a pair of N-H?O hydrogen bonds, forming an R(2) (2)(8) ring motif. The ionic units are linked by N-H?O, O-H?O and C-H?O hydrogen bonds. Furthermore, the crystal structure is stabilized by ?-? inter-actions between the benzene and pyridine rings [centroid-centroid distances = 3.5579?(8) and 3.8309?(8)?Å]. There are also intra-molecular O-H?O hydrogen bonds in the anions, which generate S(6) ring motifs.

SUBMITTER: Hemamalini M 

PROVIDER: S-EPMC3007532 | biostudies-literature | 2010 Jul

REPOSITORIES: biostudies-literature