Acta Cryst. (2007). E63, m2003  [ doi:10.1107/S1600536807030607 ]

Rerefinement of poly[[[-2,3-di-4-pyridylbutane-2,3-diol-²N:N']--iodido-copper(I)] dimethyl sulfoxide solvate] as an anhydrous honeycomb structure

S. W. Ng

Abstract: The crystal structure of the title compound, {[CuI(C₁₄H₁₆N₂O₂)]·C₂H₆OS}_n, consists of (2,3-di-4-pyridylbutane-2,3-diol)iodidocopper(I) units that are connected through Cu-N and Cu-I bonds into a flat honeycomb motif. The dimethyl sulfoxide (DMSO) molecules occupy the spaces within the layer and are hydrogen-bonded to it. The iodide ligand lies on a special position of site symmetry m, the Cu atom on a special position of site symmetry 2, and the ligand about a centre of inversion. The DMSO solvent is disordered about a special position of site symmetry m. The structure has been re-refined as an anhydrous structure from the diffraction data of Niu, Song, Wang, Guo, Zhu & Hou [Chem. Lett (2006), pp. 650-651], who described the structure as a methanol and 0.25-water solvate.

Online 30 June 2007

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