title: Two salts of 5-sulfosalicylic acid and 3-aminopyridine.
abstract: 5-Sulfosalicylic acid (5-SSA) and 3-aminopyridine (3-APy) crystallize in the same solvent system, resulting in two kinds of 1:1 proton-transfer organic adduct, namely 3-aminopyridinium 3-carboxy-4-hydroxybenzenesulfonate monohydrate, C(5)H(7)N(2)(+).C(7)H(5)O(6)S(-).H(2)O or 3-APy.5-SSA.H(2)O, (I), and the anhydrous adduct, C(5)H(7)N(2)(+).C(7)H(5)O(6)S(-) or 3-APy.5-SSA, (II). Both compounds have extensively hydrogen-bonded three-dimensional layered polymer structures, with interlayer homo- and heterogeneous pi-pi interactions in (I) and (II), respectively.
authors.affiliation: Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China. mengxianggao@mail.ccnu.edu.cn
authors.forename: Xiang Gao
authors.initials: XG
authors.lastname: Meng
authors.forename: Chun Shan
authors.initials: CS
authors.lastname: Zhou
authors.forename: Li
authors.initials: L
authors.lastname: Wang
authors.forename: Chang Lin
authors.initials: CL
authors.lastname: Liu
mesh_terms: D000631:Aminopyridines / Q000737:chemistry*; D001557:Benzenesulfonates; D018360:Crystallography, X-Ray; D015394:Molecular Structure; D012459:Salicylates / Q000737:chemistry*; D012492:Salts / Q000737:chemistry; D012997:Solvents / Q000737:chemistry*
chemical_list: D000631:Aminopyridines; D001557:Benzenesulfonates; D012459:Salicylates; D012492:Salts; D012997:Solvents; C031283:3-aminopyridine; C003366:sulfosalicylic acid