In the title structure, C 16 H 12 N 4 O 3 Á0.5H 2 O, the uncoordinated water molecule lies on a special position of site symmetry 2; O-HÁ Á ÁO and N-HÁ Á ÁO hydrogen bonds link the water and organic molecules into a layer structure.
5-Bromo-1H-indole-3-carbaldehyde 2-nitrophenylhydrazone hemihydrate
✍ Scribed by Ali, Hapipah M. ;Abdul Halim, Siti Nadiah ;Ng, Seik Weng
- Publisher
- International Union of Crystallography
- Year
- 2005
- Tongue
- English
- Weight
- 154 KB
- Volume
- 61
- Category
- Article
- ISSN
- 1600-5368
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📜 SIMILAR VOLUMES
Molecules of 5-bromo-1H-indole-3-carbaldehyde 3-methoxybenzoylylhydrazone, C 17 H 14 BrN 3 O 2 , are paired by aminocarbonyl hydrogen bonds over a center of inversion, and adjacent pairs are further linked by hydrogen bonds into ribbons.
In the title molecule, C 14 H 10 BrN 3 OS, the indole moiety is twisted by 36.0 (2) with respect to the disordered thienyl group and the nitrogen-bound H atoms interact with the amide O atoms of symmetry-related molecules, resulting in an N-HÁ Á ÁO hydrogen-bonded layer structure.
In the title compound, C 16 H 12 ClN 3 O, the amide O atom serves as an N-HÁ Á ÁO hydrogen-bond acceptor to the amide and amine groups of two adjacent molecules, resulting in a layered structure.
The amido O atom in the title molecule, C 16 H 11 Cl 2 N 3 O, is the hydrogen-bond acceptor for the amide group and amine groups of two adjacent molecules; the hydrogen-bonding interactions result in a layer motif.
Single-crystal X-ray study T = 295 K Mean (C-C) = 0.002 A R factor = 0.043 wR factor = 0.124 Data-to-parameter ratio = 15.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.