Modification of the Hydrogen Bonds Network in a Hydroxyl Functionalized Dithiolene Ligand by HgX2 Complexation

Autor: Fabrice Guyon, Amadou Ndiaye, Michael Knorr, Michael Veith, Volker Huch
Rok vydání: 2007
Předmět:
Zdroj: Zeitschrift für anorganische und allgemeine Chemie. 633:1959-1963
ISSN: 1521-3749
0044-2313
DOI: 10.1002/zaac.200700134
Popis: Ligand L (4,5-bis[(2′-hydroxyethyl)thio]1,3-dithiole-2-thione) which crystallizes in the monoclinic system (P21/n) displays a 1-D network generated by a succession of intra-molecular and inter-molecular hydrogen bonds. Weak π-π and S···S interactions are also observed in the supramolecular structure. Reaction of L with one equivalent of mercury(II) iodide affords the adduct [HgI2L] (1a). The crystal structure of this complex shows that coordination occurs exclusively via the sulfur atom of the thione function (C=S). The ligation on HgI2 induces a change of the hydrogen bond pattern generated by the hydroxyl substituents: only intermolecular hydrogen bonds are present, organizing the adduct 1a in form of centrosymmetrical dimers in the solid state. The propensity of HgI2 to build-up chains via μ2-iodo ligand may be at the origin of the modification of the hydrogen bond network.
Databáze: OpenAIRE
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