0000000000406854
AUTHOR
Yaroslav Filinchuk
Poly[μ2-chloro-μ2-1,4-oxathiane-κ2S:S-copper(I)]
The title complex, [CuCl(C4H8OS)]n, contains infinite spiral (CuS)n chains linked by bridging Cl atoms into layers. The Cl atoms do not form polymeric fragments with CuI, but combine into isolated centrosymmetric Cu2Cl2 units. The compound is non-isomorphous with the Br-containing analogue, which contains Cu8S8 rings linked by Br atoms into chains. The O atom of the 1,4-oxathiane molecule does not realize its coordination abilities in the known copper(I)-halide complexes, while in copper(II)-halide complexes, oxathiane is coordinated via the S and O atoms. This falls into a pattern of the preferred interactions, viz. weak acid (CuI atom) with weak base (S atom) and harder acid (CuII atom)…
Polymorphism of Copper(I) Halide π-Complexes: Synthesis and Structure of a New Modification of [Cu2Cl2(CH2=CH–CH2)2O]
A new polymorph of [Cu2Cl2(CH2=CH-CH 2)2O] has been obtained by an alternating-current electrochemical synthesis starting from CuCl2 and triallylphosphite. Diallylether was obtained in statu nascendi via transetherification of triallylphosphite. The structure is monoclinic, space group P21/n, a = 7.6738(7), b = 6.5128(4), c = 18.2689(18) A, β = 91.644(11)°, V = 912.67(13) A3 (at 150 K), Z = 4; R1 = 0.0339, wR2 = 0.0822. Flexibility of the organic ligand and weak interactions copper⋯halogen have been identified as the main reasons enabling polymorphism in molecular π-complexes of copper(I). ©2008 Wiley-VCH Verlag GmbH & Co. KGaA.