Bis(2-pyridyl­methyl)­ammonium perchlorate

The title compound, C₁₂H₁₄N₃⁺·ClO₄⁻, crystallizes from a solution of bis(2-pyridyl­methyl)­amine and HClO₄ in water/DMF (3:1, v/v) with the secondary amine N atom protonated. The two pyridine arms of the ligand are held in a closed conformation through a strong bifurcated hydrogen bond from one of the ammonium H atoms. The ClO₄⁻ anion is also hydrogen bonded to the same H atom of the ammonium N atom, with an N⋯O distance of 2.899 (4) Å. The other ammonium H atom is hydrogen bonded to an O atom of a symmetry-related perchlorate anion.