trans-2,5-Dimethylpiperazine-1,4-diium bis(perchlorate) dihydrate: crystal structure and Hirshfeld surface analysisCherifa Ben Mleh, Thierry Roisnel, Houda MarouaniActa crystallographica. Section E…2016The asymmetric unit of the title hydrated mol-ecular salt, C6H16N2 (2+)·2ClO4 (-)·2H2O, contains a half dication (completed by inversion symmetry), a perchlorate anion and a water mol-ecule. The… (More)