title: Bis(2,6-diamino-pyridinium)-adipate-adipic acid-water (2/1/1/2).
abstract: The crystal structure of the title compound, 2C(5)H(8)N(3) (+)·C(6)H(8)O(4) (2-)·C(6)H(10)O(4)·2H(2)O, consists of amino-pyridinium cations, adipate dianions, adipic acid mol-ecules and disordered solvent water mol-ecules [occupancies 0.50 (4) and 0.50 (4)]. Both the adipate and adipic acid are located across inversion centres. Eight-membered hydrogen-bonded rings exist involving amino-pyridinium and adipate ions. Adipic acid mol-ecules and adipate anions are linked into zigzag supra-molecular chains by O-H⋯O hydrogen bonds.
authors.affiliation: Samsun Vocational School, Ondokuz Mayıs University, TR-55139 Samsun, Turkey.
authors.forename: Nevzat
authors.initials: N
authors.lastname: Karadayı