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

✍ Scribed by He, Ming-Yang ;Chen, Sheng-Chun ;Chen, Qun

Publisher
International Union of Crystallography
Year
2006
Tongue
English
Weight
365 KB
Volume
62
Category
Article
ISSN
1600-5368

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📜 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.

N,N′-[(2,3,5,6-Tetrafluoro-1,4-phenylene
N,N′-[(2,3,5,6-Tetrafluoro-1,4-phenylene)dimethylene]bis(pyridine-3-carboxamide)
✍ Chen, Shengchun ;Chen, Qun ;Liu, Qi ;Li, Chao ;He, Mingyang 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 295 KB

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

trans-3,6-Bis­(chloro­phenyl­methyl­ene)
trans-3,6-Bis­(chloro­phenyl­methyl­ene)-1,2,4,5-tetra­thia­ne
✍ Jones, Peter G. ;Bubenitschek, Peter ;Sander, Wolfram ;Wierlacher, Stefan 📂 Article 📅 2002 🏛 International Union of Crystallography 🌐 English ⚖ 181 KB

Single-crystal X-ray study T = 133 K Mean '(C±C) = 0.005 A Ê R factor = 0.049 wR factor = 0.140 Data-to-parameter ratio = 14.3 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.