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N,N′-[(2,3,5,6-Tetrafluoro-1,4-phenylene)dimethylene]bis(pyridine-3-carboxamide)

✍ Scribed by Chen, Shengchun ;Chen, Qun ;Liu, Qi ;Li, Chao ;He, Mingyang

Publisher
International Union of Crystallography
Year
2007
Tongue
English
Weight
295 KB
Volume
63
Category
Article
ISSN
1600-5368

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✦ Synopsis

The title compound, C 20 H 14 F 4 N 4 O 2 , has been synthesized as part of our ongoing investigations into three-dimensional supramolecules or polymers with intriguing structural topologies and properties. The molecule crystallizes around a inversion centre, with one half-molecule in the asymmetric unit and a dihedral angle of 62.26 (9) between the pyridine ring and the central benzene ring. Intermolecular N-HÁ Á ÁO hydrogen bonds between adjacent molecules result in a onedimensional chain, and C-HÁ Á ÁN and C-HÁ Á ÁO interactions may be effective in the stabilization of these one-dimensional motifs.

📜 SIMILAR VOLUMES

N,N′-[(2,3,5,6-Tetrafluoro-1,4-phenylene
N,N′-[(2,3,5,6-Tetrafluoro-1,4-phenylene)dimethylene]bis(pyridine-2-carboxamide)
✍ Chen, Sheng-Chun ;Yin, Fang-Hua ;He, Ming-Yang ;Yan, Kang ;Chen, Qun 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 108 KB

The title compound, C 20 H 14 F 4 N 4 O 2 , is centrosymmetric. The dihedral angle between the pyridine and benzene ring is 64.8 (4) . The crystal structure is stabilized by intermolecular N-HÁ Á ÁO hydrogen bonding.

Bis[μ-N-(1,3,4-thiadiazol-2-yl)pyridine-
Bis[μ-N-(1,3,4-thiadiazol-2-yl)pyridine-3-carboxamide-κ2N1,N3]disilver(I) bis(perchlorate)
✍ Wang, Duo-Zhi ;Tong, Xiao-Lan ;Li, Jian-Rong 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 237 KB

In the title compound, [Ag 2 (C 8 H 6 N 4 OS) 2 ](ClO 4 ) 2 , each Ag I center in the centrosymmetric dinuclear complex cation is coordinated by one pyridine N and a thiadiazole N atom of two inversion-related N-(1,3,4-thiadiazol-2-yl)pyridine-3carboxamide ligands in an almost linear geometry [Ag-N

(±)-Di-μ-chlorido-(μ-N,N′-{[3,3′-methyle
(±)-Di-μ-chlorido-(μ-N,N′-{[3,3′-methylenebis(2,4,6-trimethyl-3,1-phenylene)]dimethylene}bis(2-methylpropan-2-amine))bis[chloridopalladium(II)]
✍ Chahen, Ludovic ;Therrien, Bruno ;Süss-Fink, Georg 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 390 KB

In the title dinuclear palladium complex, [Pd~2~Cl~4~(C~29~H~46~N~2~)], the terminal ligands adopt an __anti__ configuration, with an intramolecular metal–metal distance of 3.3625 (5) Å. The dinuclear palladium complex adopts a V-shaped conformation, with a dihedral angle of 152.67 (3)° between the