In the title compound, [Cu(ClO4)(C3H10N2)2(H2O)]ClO4, the Cu(II) atom has a distorted octa-hedral coordination sphere and is coordinated by the N atoms of two propane-1,3-di-amine ligands in the equatorial plane. The axial positions are occupied by a water O atom and an O atom of a disordered perchlorate anion [occupancy ratio 0.631 (9):0.369 (9)]. In the crystal, the various components are linked via O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds, forming sheets lying parallel to (001).
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