The Second Orthorhombic Polymorph of Zwitterionic Metanilic Acid at 130 K

Smith, Graham, Wermuth, Urs D., Young, David J., & White, Joanathan M. (2006) The Second Orthorhombic Polymorph of Zwitterionic Metanilic Acid at 130 K. Acta Crystallographica. Section E: Structure Reports Online, 62(3), o948-o950.

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The low-temperature (130 K) crystal structure of the second orthorhombic polymorph of metanilic acid (3-aminobenzenesulfonic acid), C6H7NO3S, shows the presence of two independent and conformationally similar molecules of the zwitterionic acid (3-ammoniobenzenesulfonate) in the asymmetric unit; these interact through hydrogen bonding to give a cyclic R22(14) association. Peripheral hydrogen bonding gives a three-dimensional framework polymer, such as was found in the earlier polymorph [Hall & Maslen (1965), Acta Cryst. 18, 301-306], but the overall structural make-up is significantly different.

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ID Code: 4892
Item Type: Journal Article
Refereed: Yes
Additional Information: Author contact details:
DOI: 10.1107/S1600536806003953
ISSN: 1600-5368
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000)
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2006 International Union of Crystallography
Copyright Statement: The definitive version is available at
Deposited On: 15 Jan 2007 00:00
Last Modified: 29 Feb 2012 13:26

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