In the title structure, C~12~H~10~N~4~O^2+^·2ClO~4~ ^−^·H~2~O, the dication is not planar and N—H...O hydrogen bonds link it to perchlorate anions and water molecules. In addition, N—H...O and O—H...O hydrogen bonds link these units into a three-dimensional network.
Bis(2,5-di-4-pyridyl-1,3,4-oxadiazole)silver(I) nitrate monohydrate
✍ Scribed by Zhang, Zhi-Hui ;Li, Cheng-Peng ;Tian, Yi-Ling ;Guo, Ya-Mei
- Publisher
- International Union of Crystallography
- Year
- 2007
- Tongue
- English
- Weight
- 429 KB
- Volume
- 63
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
In the title mononuclear complex, [Ag(C 12 H 8 N 4 O) 2 ]-NO 3 ÁH 2 O, the Ag I ion is coordinated linearly by two pyridyl N atoms from two crystallographically independent monodentate 2,5-di-4-pyridyl-1,3,4-oxadiazole (4-bpo) ligands. In addition, the asymmetric unit contains one nitrate anion and one solvent water molecule. In the crystal structure, nitrate anions connect to Ag I ions via weak AgÁ Á ÁO interactions [AgÁ Á ÁO = 2.836 (3) A ˚] and to two symmetry-related solvent water molecules via O-HÁ Á ÁO hydrogen bonds, to afford a one-dimensional herring-bone-like motif along [100]. Significantstacking interactions [CgÁ Á ÁCg = 3.614 (2)-3.721 (2) A ˚, where Cg is the centroid of a pyridyl or oxadiazole ring] are also found between two adjacent onedimensional motifs, resulting in a double-strand supramolecular array.
📜 SIMILAR VOLUMES
Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.009 A Ê Disorder in solvent or counterion R factor = 0.045 wR factor = 0.145 Data-to-parameter ratio = 11.7 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
The title complex, 2,5-di-4-pyridyl-1,3,4-oxadiazole-hydroquinone (1/1), C 12 H 8 N 4 OÁC 6 H 6 O 2 , crystallized from a solvent mixture of methanol and water. O-HÁ Á ÁN hydrogen bonds link the molecules to give a chain structure.