Bis[N-(pyridin-2-ylcarbon-yl)pyridine-2-carboxamidato]iron(III) perchlorate monohydrate.

The structure of the title salt complex, [Fe(C(12)H(8)N(3)O(2))(2)]ClO(4)·H(2)O, contains one Fe(III) cation, two N-(pyridin-2-ylcarbon-yl)pyridine-2-carboxamidate (bpca(-)) anions, one perchlorate anion and one water mol-ecule. The Fe(III) cation has an approximate octa-hedral geometry, defined by six N atoms from two bpca(-) anions. The nearly parallel [dihedral angle = 1.50†(1)°] bpca(-) anions form two-dimensional supermolecules along the a axis by the way of weak π-π stacking inteactirons [centroid-centroid distances = 3.948†(2), 4.000†(2), 3.948†(2), 3.911†(2), 3.897†(2), 3.984†(2) and 3.929†(2)†à ]. Intra- and inter-molecular C-H⋯O hydrogen bonding occurs. The water mol-ecule [occupancies 0.520†(5) and 0.480†(5)], two carbonyl O atoms [occupancies 0.622†(7) and 0.378†(7)] and the four perchlorate O atoms [occupancies 0.887†(4) and 0.113†(4)] are each disordered over two positions.