The title molecule, C 21 H 15 N 7 O 6 , has crystallographic twofold symmetry. In the crystal structure, intermolecular N-HÁ Á ÁO hydrogen bonds [HÁ Á ÁO = 2.125 (17) A ˚] link the molecules, forming one-dimensional chains along [001].
Pyridine-2,6-dicarbohydrazide
✍ Scribed by Jia, Bing ;Hu, Zong-Qiu ;Deng, Xiao-Tao ;Cheng, Cui-Xia ;Shi, Shao-Min
- Publisher
- International Union of Crystallography
- Year
- 2006
- Tongue
- English
- Weight
- 187 KB
- Volume
- 62
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
The molecules of the title compound, C 7 H 9 N 5 O 2 , are almost completely planar. All bond lengths and angles show normal values. Hydrogen bonds of the form N-HÁ Á ÁO interconnect the molecules to form a three-dimensional network.
📜 SIMILAR VOLUMES
In the molecule of the title compound, C~25~H~27~N~3~, the two 2,6-dimethyl-substituted phenyl rings are connected to the pyridine ring __via__ the C=N imine bonds. Although the compound includes three N atoms, there are no obvious hydrogen-bond or π–π interactions in the crystal structure.
The title compound, C 20 H 14 N 4 , shows dimorphism, with crystals obtained from different solvents displaying different crystal structures. The main structural difference between the two polymorphs concerns the crystal packing, the dihedral angle between two nearly planar molecules being distinctl
## Abstract A new complex of Zinc(II) and guanidinium pyridine–2,6–dicarboxylate proton transfer compound, (GnH)~2~ (pydc), was synthesized and characterized using IR, ^1^H NMR and ^13^C NMR spectroscopy and single crystal X–ray diffraction. The chemical formula and space group of the resulting com
Single-crystal X-ray study T = 150 K Mean '(C±C) = 0.002 A Ê R factor = 0.025 wR factor = 0.069 Data-to-parameter ratio = 18.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.