Figure 1
The molecular structure of the complex dication in (I) along with the loosely associated anions, showing the atom-labelling scheme and displacement ellipsoids at the 50% probability level. The molecule is disposed about an inversion centre with unlabelled atoms related by the symmetry operation 1 − x, 1 − y, 1 − z. The weak Cu⋯O3 interactions above and below the CuN4 plane are shown as dashed lines. |