2,5-Bis[2-({bis­[3-(dimethyl­aza­nium­yl)prop­yl]aza­nium­yl}meth­yl)phen­yl]-1,3,4-oxadiazole hexa­kis­(perchlorate) sesquihydrate

In the title hydrated salt, C(36)H(66)N(8)O(6+)·6ClO(4) (−)·1.5H(2)O, the asymmetric unit consists of a hexa­protonated [H(6) L](6+) cation, five perchlorate anions in general positions, two on twofold rotation axes (one of which is disordered), and two water mol­ecules of crystallization in general positions, one of them disordered around a twofold crystallographic axis. In the [H(6) L](6+) cation, two strong intra­molecular N—H⋯N hydrogen bonds occur, involving the N atoms of the oxadiazole ring as acceptors and the closest NH(+) groups of each dipropyl­enetriamine unit. In the crystal, the [H(6) L](6+) cations form channels along the a-axis direction, in which the perchlorate counter-ions and the water mol­ecules are lodged. The crystal packing features a network of N—H⋯O and O—H⋯O hydrogen bonds involving the NH(+) groups of the [H(6) L](6+) cation, the perchlorate anions and the water mol­ecules.