Bis(2,4,6-triamino-1,3,5-triazin-1-ium)bis(4-hydroxypyridine-2,6-carboxylato)cuprate(II) hexahydrate

In the title compound, (C(3)H(7)N(6))(2)[Cu(C(7)H(3)NO(5))(2)]center dot 6H(2)O, the coordination geometry of the Cu(II) atom can be described as distorted octahedral. The equatorial plane is defined by four O atoms from two 4-hydroxypyridine-2,6-dicarboxylate ligands. The axial positions are occupied by the N atoms of the same ligands. There is an extensive three-dimensional hydrogen-bond network reinforcing crystal cohesion.