8,10-Diiodo-2,6-dioxo-4λ3-ioda-3,5-dioxatricyclo[5.3.1.04,11]undeca-1(11),7,9-triene-9-carboxylic acid
oleh: Yi Zhang, Lu Han, Daopeng Sheng, Yanzhao Yang
| Format: | Article |
|---|---|
| Diterbitkan: | International Union of Crystallography 2012-03-01 |
Deskripsi
In the title compound, C9HI3O6·2H2O, the molecule is located on a twofold axis that gives rise to disorder of the carboxyl group. This disorder is correlated with the disorder of one of the H atoms of the water molecule. The carboxyl group is twisted relative to the attached benzene ring by 75.1 (4)°. The intramolecular I...O distance is 2.112 (6) Å. Molecules are linked via O—H...O hydrogen bonding, C—I...O halogen bonding, with I...O distances in the range 3.156 (5)–3.274 (6) Å, and dipolar C=O...C=O interactions between the carboxyl and carboxylate groups, with an O...C distance of 2.944 (10) Å.