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. 2013 Mar 28;69(Pt 4):o596.
doi: 10.1107/S1600536813007216. Print 2013 Apr 1.

Bis(4-sulfamoylanilinium) sulfate

B Ravikumar  1 , S Pandiarajan, S Athimoolam
Affiliations

Bis(4-sulfamoylanilinium) sulfate

B Ravikumar et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

In the title salt, 2C6H9N2O2S(+)·SO4 (2-), the sulfate S atom is situated on a crystallographic twofold axis (the symmetry of the anion is 2). The anion exerts intense libration, which is manifested by shortening of the observed sulfate S-O bonds, as well as by features in the electron-density map. The crystal structure is stabilized through a three-dimensional hydrogen-bonding network formed by strong N-H⋯O hydrogen bonds.

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Figures

Fig. 1.
Fig. 1.
The title molecule with the atom numbering scheme. The displacement ellipsoids are shown at the 50% probability level. The H-bonds are shown as dashed lines. (Symmetry code: (i) 1-x, y, 3/2-z.)
Fig. 2.
Fig. 2.
Section through the electron density map calculated from Fo passing through the atoms S2 and the atoms O21 and O21i (Petricek et al., 2006). Symmetry code: (i) 1-x, y, 3/2-z. The contours are given in 1 eÅ-3 levels.
Fig. 3.
Fig. 3.
Section through the electron density map calculated from Fo passing through the atoms S2 and the atoms O22 and O22i (Petricek et al., 2006). Symmetry code: (i) 1-x, y, 3/2-z. The contours are given in 1 eÅ-3 levels. The curved character of the electron density of the depicted O atoms indicates libration movement.
Fig. 4.
Fig. 4.
Packing diagram of the title compound viewed down the b axis. The H-bonds are shown as dashed lines.
See this image and copyright information in PMC

References

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