Acta Cryst. (2013). E69, o1052 [ doi:10.1107/S1600536813014918 ]
Abstract: The title compound, C18H14N2O2, crystallized with two independent zwitterion molecules (A and B) in the asymmetric unit. They are both close to planar, the dihedral angle between the benzene ring and naphthalene ring system being 4.30 (9)° in A and 4.69 (9)° in B. Each molecule has an E conformation with respect to the azo double bond. In each of the independent molecules, an intramolecular N-HO hydrogen bond forms an S(6) ring motif. In the crystal, molecules are linked via C-HO hydrogen bonds, forming -A-A-A- and -B-B-B- chains parallel to one another and propagating along the a-axis direction. There are also - interactions between adjacent molecules involving benzene and naphthalene rings [centroid-centroid distance of 3.626 (3) Å for adjacent A molecules and 3.652 (3) Å for adjacent B molecules].
Hyper-Text Markup Language (HTML) file
Chemical Markup Language (CML) file
To open or display or play some files, you may need to set your browser up to use the appropriate software. See the full list of file types for an explanation of the different file types and their related mime types and, where available links to sites from where the appropriate software may be obtained.
The download button will force most browsers to prompt for a file name to store the data on your hard disk.
Where possible, images are represented by thumbnails.
Copyright © International Union of Crystallography