The organic mol-ecule of title compound, C(30)H(66)N(4)O(6)Si(2) (2+)·2I(-), is located around a centre of symmetry. The structure exhibits disorder of the trieth-oxy groups with the ratios 0.78 (1)/0.22 (1), 0.67 (1)/0.33 (1) and 0.58 (1)/0.42 (1).