2-Amino-3-carb-oxy-pyridinium perchlorate.
The asymmetric unit includes two crystallographically independent equivalents of the title salt, C(6)H(7)N(2)O(2) (+)·ClO(4) (-). The cations and anions form separate layers alternating along the c axis, which are linked by N-H⋯O, O-H⋯O and C-H⋯O hydrogen bonds into a two-dimensional network parallel to (100). Further C-H⋯O contacts connect these layers, forming a three-dimensional network, in which R(4) (4)(20) rings and C(2) (2)(11) infinite chains can be identified.
Fadila
F
Berrah
Sofiane
S
Bouacida
Hayet
H
Anana
Thierry
T
Roisnel