Monoclinic polymorph of chlorido(dimethyl sulfoxide-κO)triphenyltin(IV)
| Autor: | Ibrahima Cisse, Sylvain Bernès, Serigne Fallou Pouye, Libasse Diop, Francisco Javier Ríos-Merino |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
conformation
crystal structure Dimethyl sulfoxide dimethyl sulfoxide chemistry.chemical_element General Chemistry Crystal structure 010402 general chemistry 010403 inorganic & nuclear chemistry Condensed Matter Physics 01 natural sciences 0104 chemical sciences Ion Research Communications polymorphism Trigonal bipyramidal molecular geometry chemistry.chemical_compound Crystallography chemistry Polymorphism (materials science) tin General Materials Science Tin Coordination geometry Monoclinic crystal system |
| Zdroj: | Acta Crystallographica Section E: Crystallographic Communications |
| ISSN: | 2056-9890 |
| Popis: | A new polymorph of [Sn(C6H5)3Cl(C2H6OS)] has been characterized, which crystallizes in space group P21 with Z′ = 2, while the previously reported phase was in space group P212121 with Z′ = 1. The crystal structure of the title tin complex, [Sn(C6H5)3Cl(C2H6OS)], (I), has been reported with one molecule in the asymmetric unit in an orthorhombic cell [Kumar et al. (2009 ▸). Acta Cryst. E65, m1602–m1603]. While using SnPh3Cl as a starting material for a reaction for which the products were recrystallized over a very long time (six months) from dimethyl sulfoxide (DMSO), a new polymorph was obtained for (I), with two independent molecules in the asymmetric unit of a monoclinic cell. The coordination geometry of the Sn centres remains unchanged, with the Cl− ion and the DMSO molecule in the apical positions and the phenyl C atoms in the equatorial positions of a trigonal bipyramid. The main difference between the polymorphs is the relative orientation of the phenyl rings in the equatorial plane, reflecting a degree of free rotation of these groups about their Sn—C bonds. In the crystal, molecules are linked into [010] chains mediated by weak C—H⋯O interactions. |
| Databáze: | OpenAIRE |
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