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The title compound, C 16 H 26 N 4   4+ ·2.5ClO 4   − ·1.5NO 3   − , is an organic salt in which the cation is a fully protonated tetra­mine. The cation lies on an inversion center and, as a consequence, both benzene rings are parallel. The central chain is found in an all- trans  arrangement, a conformation different from that observed in the crystal structure of the non-protonated mol­ecule. The charges are balanced by a mixture of nitrate and perchlorate ions. One site is occupied by an ordered perchlorate ion, while the other contains both nitrate and perchlorate ions, with occupancies of 0.75 and 0.25, respectively. In the crystal, the NH 2   +  groups of the cation form N—H⋯O hydrogen bonds with the anions. The NH 3   +  groups also behave as donor groups, allowing the building of chains along [100], alternating cations and disordered anions being connected  via  N—H⋯O hydrogen bonds.

N,N′-Bis(2-ammoniobenzyl)ethane-1,2-diammonium–nitrate–perchlorate (1/1.5/2.5)