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A perfluoro­cyclo­pentene dithienylethene based mol­ecular switch: 1,2-bis­[5-(4-ethynylphen­yl)-2-methyl­thio­phen-3-yl]-3,3,4,4,5,5-hexa­fluoro­cyclo­pentene

✍ Scribed by Iyer, Vijay Mahadevan ;Stoeckli-Evans, Helen ;Belser, Peter

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

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✦ Synopsis

The title compound, C 31 H 18 F 6 S 2 , is a molecular switch based on dithienylperfluorocyclopentene. The molecule possesses pseudo-C 2 symmetry and has the open form of the switch. There are a number of intramolecular C-HÁ Á ÁF hydrogen bonds, but in the crystal structure there are no interactions between symmetry-related molecules.

📜 SIMILAR VOLUMES

1,2-Bis[5-(3,4-difluoro­phen­yl)-2-methy
1,2-Bis[5-(3,4-difluoro­phen­yl)-2-methyl-3-thien­yl]-3,3,4,4,5,5-hexa­fluoro­cyclo­pent-1-ene
✍ Liu, Gang ;Pu, Shou-Zhi ;Xu, Jing-Kun 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 212 KB

Single-crystal X-ray study T = 294 K Mean (C-C) = 0.006 A R factor = 0.052 wR factor = 0.152 Data-to-parameter ratio = 12.4 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

5,5′-Dimethyl-4,4′-(3,3,4,4,5,5-hexa­flu
5,5′-Dimethyl-4,4′-(3,3,4,4,5,5-hexa­fluoro­cyclo­pentene-1,2-di­yl)bis­(thio­phene-2-carboxylic acid) acetone 0.25-solvate
✍ Liu, Xue-Dong ;Tong, Qing-Xiao ;Wang, Ru-Ji ;Zhang, Fu-Shi 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 185 KB

In the title compound, C~17~H~10~F~6~O~4~S~2~·0.25C~3~H~6~O, there are two non-solvent molecules in the asymmetric unit, with different conformations. One is a photo-active antiparallel conformation in which the reactive C atoms are separated by 3.569 (6) Å. The other is a photo-inactive parallel co