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In the title compound, [Cu(NO3)2(C20H40N4)]·3H2O, the Cu atom lies on a crystallographic inversion centre and has a distorted octahedral geometry, with four N atoms of the macrocyclic ligand in the equatorial positions and two O atoms of the axial nitrate ligands. The long axial Cu—O bond of 2.746 (2) Å may result from the Jahn-Teller effect. The macrocyclic ligand adopts the most stable trans-III configuration with the two six-membered rings in chair form and two five-membered rings in a gauche form. [ABSTRACT FROM AUTHOR]

In the title compound, [Cu(ClO4)2(C20H40N4)], the CuII ion has a tetragonally distorted octahedral environment, with the four N atoms of the macrocyclic ligand in equatorial positions and the O atoms of two perchlorate groups in axial positions. The CuII ion is situated on an inversion centre. The macrocyclic ligand adopts its most stable trans-III conformation. The long axial Cu—O bond is the result of the Jahn–Teller effect. The crystal structure is stabilized by intramolecular hydrogen bonds between secondary N—H and the O atoms of the perchlorate groups. [ABSTRACT FROM AUTHOR]

The mol­ecule of the title compound, 2,13-dibenzyl-5,16-dimethyl-2,6,13,17-tetra­azatricyclo­[16.4.01,18.07,12]docosane, C34H52N4, is centrosymmetric. The 14-membered macrocycle adopts the stable trans-III ( RRSS) configuration, with one benzyl group above and the other below the macrocycle mean plane. The crystal structure is stabilized by N—H⋯N hydrogen bonds. There is no inter­molecular π–π inter­action between benzyl planes, which are almost 6Å apart. [ABSTRACT FROM AUTHOR]