Crystal structure of bis­(1-benzyl-1H-1,2,4-triazole) perchloric acid monosolvate

The title compound, 2C₉H₉N₃·HClO₄, was prepared by reaction of 1-benzyl-1H-1,2,4-triazole and HClO₄ in ethanol at room temperature. The asymmetric unit consists of two mol­ecules of 1-benzyl-1H-1,2,4-triazole and one of HClO₄ mol­ecule. The benzene and triazole rings make dihedral angles of 85.45 (8) and 84.76 (8)° in the two mol­ecules. The H-atom position of the perchloric acid mol­ecule is split over two O atoms (real peaks on difference map), with site-occupation factors of 0.5. These H atoms form two classical hydrogen bonds [2.546 (5) and 2.620 (4) Å] with the same N atoms in both mol­ecules. Five inter­molecular non-classical C—H...O inter­actions, with C...O distances in the range 3.147 (5)–3.483 (5) Å, are found in the crystal structure.