Synthesis of bis(tert-butyl)(2-thioxo-1,3-dithiole-4,5-dithiolato)stannane, But2Sn(dmit), and bis(tert-butyl)(2-oxo-1,3-dithiole-4,5-dithiolato)stannane, But2Sn(dmio): Crystal structures, at 120K, of polymeric But2Sn(dmit), and two polymorphs of But2Sn(dmio), a polymer and a cyclic tetramer
| Autor: | R. Alan Howie, Nadia M. Comerlato, Carolina X. A. da Silva, James L. Wardell, Glaucio B. Ferreira |
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| Rok vydání: | 2008 |
| Předmět: |
Chemistry
Stereochemistry Organic Chemistry chemistry.chemical_element Crystal structure Ring (chemistry) Biochemistry Stannane Inorganic Chemistry Trigonal bipyramidal molecular geometry Crystallography chemistry.chemical_compound Tetramer X-ray crystallography Materials Chemistry Molecule Physical and Theoretical Chemistry Tin |
| Zdroj: | Journal of Organometallic Chemistry. 693:2424-2430 |
| ISSN: | 0022-328X |
| DOI: | 10.1016/j.jorganchem.2008.04.019 |
| Popis: | The syntheses of bis(tert-butyl)(2-thioxo-1,3-dithiole-4,5-dithiolato)stannane, But2Sn(dmit) 1, and bis(tert-butyl)(2-oxo-1,3-dithiole-4,5-dithiolato)stannane, But2Sn(dmio) 2, are reported. Compounds 1 and 2 were prepared by the exchange reactions of But2SnCl2 with [NEt4]2[Zn(dmit)2] and [NEt4]2[Zn(dmio)2], respectively. X-ray structure determinations reveal the existance of two polymorphs of 2, 2m and 2o. In all three phases, intermolecular Sn–Sthioxo or Sn–Ooxo, as appropriate, create five-coordinate, trigonal bipyramidal tin centres. In 1 and 2o these intermolecular contacts link the molecules in chains, while in 2m they create a centrosymmetric cyclic tetramer, with a 24 membered, Sn4C8O4S8, ring. These findings of aggregated structures are in contrast to the published report that the simpler ethane-1,2-dithiolato compound, But2Sn(edt), is a molecular species in the solid state. |
| Databáze: | OpenAIRE |
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