HEXAMETHYLETHYLENEDIAMMONIUM HEXACHLORODICUPRATE(II)

[C8H22N2]2+.[Cu2Cl6]2-, M(r) = 486.1, triclinic, P1BAR, a = 6.254 (1), b = 8.269 (2), c = 9.753 (2) angstrom, alpha = 103.96 (2), beta = 103.67 (2), gamma = 105.80 (2)-degrees, V = 445.7 (2) angstrom 3, Z = 1, D(x) = 1.81 Mg m-3, Cu K-alpha, lambda = 1.54182 angstrom, mu = 11.32 mm-1, F(000) = 244, T = 295 K, R = 0.049 for 889 unique observed [F greater-than-or-equal-to 3-sigma(F)] reflections and 85 parameters. The structure consists of separate organic dications and stacks, (I), of quasi-planar [GRAPHICS] Cu2Cl6(2-) anions. The stacking arrangement is such that each Cu(II) ion assumes a 4 + 1 coordination geometry. Within the dimer, terminal Cu-Cl distances average 2.264 angstrom and bridging distances average 2.318 angstrom while the interdimer semicoordinate Cu...Cl distance is 2.665 (1) angstrom. The bifold angle between the central Cu2Cl2 core and the folded CuCl3 flap of the dimer is 19.1-degrees.