8-Ammonionaphthalene-2-sulfonate monohydrate: the zwitterionic hydrate of 1,7-Cleve’s acid
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Wermuth, Urs D
Young, David J
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Abstract
The structure of 8-amino-2-naphthalenesulfonic acid monohydrate (1,7-Cleve's acid hydrate), C10H9NO3S爲O, shows the presence of a sulfonate-aminium group zwitterion, both groups and the water molecule of solvation giving cyclic R33(8) O-HO and N-HO intermolecular hydrogen-bonding interactions, forming chains which extend down the a axis of the unit cell. Additional peripheral associations, including weak aromatic ring - interactions [centroid-centroid distance = 3.6299 (15) ŝ, result in a two-dimensional sheet structure.
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Acta Crystallographica. Section E: Structure reports online
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E65
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9
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© The Author(s) 2009 For information about this journal please refer to the journal’s website. All articles published in Acta Crystallographica Section E are open access and distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. See http://creativecommons.org/licenses/by/2.0/uk/legalcode
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Structural Chemistry and Spectroscopy