THE FIRST POLYIODO COMPLEX - TRIETHYLSULFONIUMTRIIODOMERCURATE(II)-TRIS(DIIODINE), (ET(3)S)[HG2I6](1/2)CENTER-DOT-3I(2)

After Raman spectroscopic investigation of the system HgI2/Et(3)SI(x), x = 3, 5, 7, triethylsulfoniumtriiodomer-curatetris(diiodine), (Et(3)S)[Hg2I6](1/2).3I(2) was synthesized by reacting of HgI2 and liquid Et(3)SI(7). The compound crystallizes at room temperature triclinically in the space group P $($) over bar$$ 1 with a = 879.4(7), b = 1209.1(5), c = 1291.5(5) pm, alpha = 96.16(3)degrees, beta = 103.82(6)degrees, gamma = 99.05(5)degrees and Z = 2. The crystal structure is composed of disordered Et(3)S(+) cations, the centrosymmetric complex anion [HgI2/I-2(2)](2-)(2) and three connecting iodine molecules I-2.