Research Article: 5-Amino-2,4,6-triiodo­isophthalic acid–4,4′-bipyridine N,N′-dioxide–water (1/1/1)

Date Published: April 01, 2011

Publisher: International Union of Crystallography

Author(s): Kou-Lin Zhang, Jin-Bo Zhang, Seik Weng Ng.

http://doi.org/10.1107/S1600536811007276

Abstract

The aromatic rings of the N,N′-dioxide molecule in the title compound, C8H4NI3O4·C10H8N2O2·H2O, are twisted by 14.0 (2)°. The –CO2H substituents of the 5-amino-2,4,6-triiodo­isophthalic acid are twisted by 83.0 (2) and 86.5 (2)° out of the plane of the aromatic ring. In the crystal, the three components are linked by O—H⋯O hydrogen bonds into a three-dimensional network. An N—H⋯O inter­action also occurs. One of the amino H atom is not involved in hydrogen bonding.

Partial Text

For the structure of the monohydrated carb­oxy­lic acid, see: Beck & Sheldrick (2008 ▶). For the 4,4′-bipyridinium 5-amino-2,4,6-triiodo­isophthalate co-crystal of carb­oxy­lic acid, see: Zhang et al. (2010 ▶).

 

Source:

http://doi.org/10.1107/S1600536811007276

 

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