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In the title crystal structure, C16H17N52+·SO42−, cations and anions are linked via N—H...O hydrogen bonds, while ion pairs form extended one-dimensional chains through inter­molecular N—H...N hydrogen bonds.

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In the title compound, C16H17N7, the dihedral angle between the two benzotriazole ring systems is 73.97 (4)°. N—H...N and C—H...N hydrogen bonds link the mol­ecules into a chain along the a axis. The packing is further stabilized by π–π stacking inter­actions involving two benzotriazole ring systems.

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In the cation of the title compound, C38H40N102+·2ClO4·2H2O, the cyclo­hexa­nediamine group has a twofold axis and two of the four pendant benzimidazole groups are protonated. There are hydrogen bonds and π–π inter­actions in the crystal structure.
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