Bis(homopiperazine-1,4-diium) cyclo-tetra-phosphate-telluric acid (1/2).

The title compound, 2C(5)H(14)N(2) (2+)·P(4)O(12) (4-)·2Te(OH)(6), involves doubly protonated homopiperazinium cations, cyclo-tetra-phosphate anions and telluric acid mol-ecules. The framework possesses very large channels wherein the organic cations reside. A network of O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds consolidates the crystal packing.