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The crystal structures of two novel polymorphs of bis-(oxonium) ethane-1,2-di-sulfonate.

ABSTRACT: Two novel crystal forms of bis-(oxonium) ethane-1,2-di-sulfonate, 2H3O-·C2H4O6S2 2-, are reported. Polymorph II has monoclinic (P21/n) symmetry, while the symmetry of form III is triclinic (P ). Both structures display extensive networks of O-H?O hydrogen bonds. While this network in Form II is similar to that observed for the previously reported Form I [Mootz & Wunderlich (1970 ?). Acta Cryst. B26, 1820-1825; Sartori et al. (1994 ?). Z. Naturforsch. 49, 1467-1472] and extends in all directions, in Form III it differs significantly, forming layers parallel to the ab plane. The sulfonate mol-ecule in all three forms adopts a nearly identical geometry. The other observed differences between the forms, apart from the hydrogen-bonding network, are observed in the crystal density and packing index.

SUBMITTER: Mazurek J 

PROVIDER: S-EPMC6829716 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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The crystal structures of two novel polymorphs of bis-(oxonium) ethane-1,2-di-sulfonate.

Mazurek Jaroslaw J   Fernandez-Casares Ana A  

Acta crystallographica. Section E, Crystallographic communications 20191003 Pt 11

Two novel crystal forms of bis-(oxonium) ethane-1,2-di-sulfonate, 2H<sub>3</sub>O<sup>-</sup>·C<sub>2</sub>H<sub>4</sub>O<sub>6</sub>S<sub>2</sub> <sup>2-</sup>, are reported. Polymorph II has monoclinic (<i>P</i>2<sub>1</sub>/<i>n</i>) symmetry, while the symmetry of form III is triclinic (<i>P</i> ). Both structures display extensive networks of O-H⋯O hydrogen bonds. While this network in Form II is similar to that observed for the previously reported Form I [Mootz & Wunderlich (1970 ▸). <i>Ac  ...[more]

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