Abstract
Abstract HgBr2(C12H24S6), M r = 721.12, monoclinic, P21, a = 8.264(2) Å, b = 15.580(5) Å, c = 8.305(4) Å, β = 95.33(2)°, V = 1064.7(7) Å3, Z = 2, Dx = 2.249(2)g cm−3, μ = 11,50mm−1,λ(MoKα ) = 0.71073 Å, F(000) = 684, room temperature, R = 0.035, wR = 0.043 for 1736 unique reflections [I > 2σ(I)]. The compound crystallizes as a homopolymer with chains running along the a axis. The 1,4,7,10,13,16-hexathiacyclooctadecane ring acts as a doubly bidentate bridging ligand, coordinating to two translationally related Hg(II) centers via two opposite pairs of thia donors [Hg–S = 2.906(4) Å, 2.866(5) Å, 2.894(4) Å, 2.848(5) Å] and two S atoms remain uncoordinated. The octahedron around Hg(II) is completed by two terminal bromo ligands [Hg–Br = 2.618(2) Å, 2.593(2) Å with the angle Br1–Hg–Br2 of 179.42(6)°]. The conformation of the 18S6 ring shows no symmetry.
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