Abstract
The reaction of 1,1′-dibromoferrocene with three equivalents of LiTMP and Me2S2 produces a product mixture, from which 1,1′-dibromo-2,2′-bis(methylthio)ferrocene (4) can be isolated in moderate yield. Further treatment of the isolated compound 4 with two equivalents of LiTMP and Me2S2 also produced a mixture, from which the title compound 7 could be isolated. A crystal structure determination of 7 shows that the two cyclopentadienyl rings are oriented in such a way that a maximum number of S…Br contacts results. Intermolecular S…Br contacts, supported by S…S contacts, lead to a 1D-chain polymer in [1 0 0] direction.
Subject
Organic Chemistry,Physical and Theoretical Chemistry,Biochemistry
Reference21 articles.
1. Knox, G.R., and Pauson, P.L. (1958). Ferrocene Derivatives. Part VII. Some Sulphur Derivatives. J. Chem. Soc., 692–696.
2. Knox, G.R., Pauson, P.L., and Tiers, G.V.D. (1959). A novel method for elucidation of structure by N.S.R. spectroscopy: Hindered rotation owing to adjacent substitution. Chem. Ind., 1046.
3. Knox, G.R., Morrison, I.G., and Pauson, P.L. (1967). Ferrocene Derivatives. Part XVI. The Aminomethylation of Methylthio-and Bismethylthio-ferrocene. J. Chem. Soc. (C), 1842–1847.
4. Ferrocenyl Sulfides. Preparation and Reactivity as Bidentate Chelating Ligands;McCulloch;Organometallics,1985
5. Novel multidentate ferrocene ligands and their tungsten complexes;Long;J. Chem. Soc. Dalton Trans.,1997