Abstract
Diethyl telludi reacts with both copper(I) and copper(II) chloride to give polymeric chloro(diethyl telluride)copper(I) which is characterised by elemental analysis and by its IR and 1H NMR spectra. X-ray analysis shows that its structure contains infinite sheets in which two Et 2Te ligands are bridged between two di-μ-chlorodicopper(I) cores. The CuTe distances are 2.535(1) and 2.625(1) Å and the geometry around both copper and tellurium atoms in that of a distorted tetrahedron. The angels around copper range from 95.5(1) to 122.6(1)° and around tellurium from 95.6(1) to 130.5(1)°. The crystals are monoclinic, C2/ c with a 19.761(11), b 7.114(4), c 11.76(7) Å, β 111.17(1)°, V 1542(2) Å 3, ϱ calcd 2.45 ϱ obsd 2.43 g/cm 3 Z = 8 for 1220 unique “observed” reflections and the structure refined to an R index of 0.0243.
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