Structure of bis(N,N-dimethyl-1,2-ethanediamine)platinum(II) diiodide

[Pt(C8H24N4)]I2, M(r) = 625.2, monoclinic, P2(1)/c, a = 5.712 (1), b = 15.901 (5), c = 8.740 (1) angstrom, beta = 93.263 (9)-degrees, V = 792.5 angstrom 3, Z = 2, D(m) = 2.62 (2), D(x) = 2.62 g cm-3, lambda(Mo K-alpha) = 0.7107 angstrom, mu = 127.9 cm-1, F(000) = 568, T = 293 K, final R = 0.037 for 1882 counter-measured reflections. The structure consists of centrosymmetric square-planar molecules. Pt-N distances are 2.053 (5) and 2.045 (5) angstrom and the chelate N-Pt-N angle is 83.7 (2)degrees.