Darstellung und Kristallstruktur der oligomeren Iodo-d10-metallate(II) [M(I)(CH3CN)4]4[Cd6I16] · 1,5 CH3CN mit M(I) = Cu, Li/Synthesis and Crystal Structure of the Oligomeric Iodo-d10-metallate(II) [M(I)(CH3CN)4]4[Cd6I16] · 1,5 CH3CN with M(I) = Cu, Li

Abstract

Abstract The reaction of CuI or Lil with Cdl2 in the polar solvent acetonitrile results in the formation of the iodocadmates [Cu(CH3CN)4]4[Cd6I16] · 1.5CH3CN (1) and [Li(CH3CN)4]4[Cd6I16] · 1.5CH3CN (2) with the oligomeric anion [Cd6I16]4-. This new type of halometallate anion, which is found in both isotypic structures, is built up by six alternating corner and edge sharing Cdl4 tetrahedra. 1: Space group P1̄ (No 2), a = 838.5(4), b = 1465.9(9), c = 1929.8(6) pm, α = 93.01(3), β = 99.13(3), γ = 105.11(3)°; 1: Space group P1̄(No 2), a = 841.7(8), b = 1470(9), c = 1945.5(9) pm, α = 93.27(5), β = 99.13(5), γ = 104.83(5)°.