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4-(4-Aminophenylsulfonyl)anilinium toluene-4-sulfonate

Authors
  • Smith, Graham
  • Wermuth, Urs D.
Publication Date
Jan 01, 2014
Source
Queensland University of Technology ePrints Archive
Keywords
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Unknown
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Abstract

In the title p-toluenesulfonate salt of the drug dapsone, C12H13N2O2S+ C7H7O3S-, the dihedral angle between the two aromatic rings of the dapsone monocation is 70.19(17)deg. and those between these rings and that of the p-toluenesulfonate anion are 72.34(17) and 46.43(17)deg. All amine and aminium H-atoms are involved in intermolecular N-H...O hydrogen-bonding associations with sulfonyl O-atom acceptors as well as one of the sulfone O-atoms, giving a three-dimensional structure.

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