Three polymorphs of bis(5-methylthio-1,2-dithiole-3-thione)-disulfide
- The title compound, bis(5-methylthio-1,2-dithiole-3-thione)-disulfide, was yielded for the first time as by- product of the reaction of nickel(II) and cobalt(II) ions with 5-methylthio-1,2-dithiole-3-thione-4-thiolate. The compound can be obtained directly by oxidation of the ammonium salt of the ligand. C8H6S10 forms three polymorphs: (I), which crystallizes in the orthorhombic space group P212121, (II) and (III), which crystallize in the monoclinic space groups P21/c and P21/n, respectively. The crystal and molecular structures are presented here. The determination of the absolute configuration of (I) indicated the P-helical enantiomer. In contrast to this, the crystals of (II) und (III) are racemic, containing P- and M-helical enantiomers. The polymorphs differ in the kind of skewing around the disulfide bond and of the positions of the both dithiole rings to the S-S-moiety
Author details: | S. Rudershausen, Hans-Joachim Drexler, Wolfgang Banße, Alexandra Kelling, Uwe SchildeORCiDGND, Hans-Joachim Holdt |
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URL: | http://onlinelibrary.wiley.com/doi/10.1002/crat.200610776/pdf |
DOI: | https://doi.org/10.1002/crat.200610776 |
Publication type: | Article |
Language: | English |
Year of first publication: | 2007 |
Publication year: | 2007 |
Release date: | 2017/03/25 |
Source: | Crystal Research and Technology. - 42 (2007), 1, S. 84 - 90 |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
Institution name at the time of the publication: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Organische Chemie und Strukturanalytik |