2-Amino-3-carboxypyridinium chloride hemihydrate

Rafika Bouchene (1) , Sofiane Bouacida (1, 2) , Fadila Berrah (1) , Jean-Claude Daran (3)

1 OEB - Université Larbi-Ben-Mhidi [Oum-El-Bouaghi]
2 UMC - Université Frères Mentouri – Constantine 1 = Constantine 1 – Frères Mentouri University
3 LCC - Laboratoire de chimie de coordination

The asymmetric unit of the title compound, C6H7N2O2+·Cl-·0.5H2O, consists of two protonated 2-amino-3-carb­oxy­pyridine cations, two chloride anions and one mol­ecule of water. The crystal packing can be described as alternating layers of cations and anions parallel to (110), which are linked together by Ow-H...Cl inter­actions. In the crystal, four types of classical hydrogen bonds are observed, viz. cation-anion (O-H...Cl and N-H...Cl), cation-cation (N-H...O), cation-water (N-H...Ow) and water-anion (Ow-H...Cl), resulting in the formation of an infinite three-dimensional network.

Domaines: Chimie de coordination

Rafika Bouchene, Sofiane Bouacida, Fadila Berrah, Jean-Claude Daran. 2-Amino-3-carboxypyridinium chloride hemihydrate. Acta Crystallographica Section E : Structure Reports Online [2001-2014], 2012, 68 (5), pp.o1493-o1494. ⟨10.1107/S1600536812017230⟩. ⟨hal-02909421⟩