Single Crystal X-Ray Structural Characterization of [BiX₂(S₂CNEt₂)]Infinity∞, X=Cl, Br

Abstract

Single-crystal room-temperature X-ray structure determinations of the title compounds have been carried out. The two compounds are isomorphous, and isomorphous with the previously determined iodide analogue, being monoclinic, P 2₁/c, a ≈ 10.0, b ≈ 14.9, c ≈ 7.8 Ǻ, β ≈ 92°, Z = 4 formula units; residuals were 0.037, 0.036 for 2197, 1654 'observed' reflections for X = Cl , Br respectively. As in the iodide, the complexes are infinite polymers, with successive bismuth atoms bridged by the two halides and one sulfur atom of the ligand , which also chelates each bismuth. The structure determination of C₅H₅NCONEt₂]₂ [Cl₅Bi(NC₅H₅)], isostructural with its thiocarbamoyl analogue, is also recorded.