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The title complex, tpyridine (tris (2-aminothylamine] copper (Ⅱ)diperchlorate, [Cu(C6H18N4) (C5H5N)] (ClO4),, crystallizes in the orthorhombic spacegroup Pnma with independent reflections with F>4(F). The coordination geometry about the copper(Ⅱ) atom is a trigonal bipyramid with geometry parameter value of 0. 94. The cation has C, symmetry with the mirrorplane at Y=1/4.