The synthesis and crystal structure of a new coordination polymeric adduct containing mercury iodide

A new organic-inorganic hybrid adduct, [HgI₂(dps)] _n (dps=4,4′-dipyridylsulfide), has been synthesized by the reaction of HgI₂ with dps in THF at room temperature. The structure characterization was performed by means of IR, elemental analyses and single crystal X-ray analysis. It crystallizes in space group P2(1)/c with a=5.5522(1) ?, b=12.127(2) ?, c=21.508(4) ?, β=91.84(3)°. The structure consists of distorted tetrahedral Hg(II) centers bridged by dps ligands to form one-dimensional linear chains with C–H···I interaction. Comparison of transition metal assemblies with dps showed that the dimensionality and structure of self-assembled supramolecule depend on the coordination preferences of metal ions, the geometry, bulk, and rigidity of ligands, the number and size of anions, and the supramolecular weak interactions.Supplementary material Crystallographic data for the structure reported in this article has been deposited in the Cambridge Crystallographic Data Center, CCDC No. 285579 for compound 1. The information may be obtained free of charge from the Director, CCDC, 12 Union Road, Cambridge, CB2 1EZ, UK (fax: +44-1223-336033; e-mail: deposit@ccdc.cam.ac.uk or http://www.ccdc.cam.ac.uk).