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25,27-Bis­(benzyl­oxy)-26,28-di­hydroxy­calix­[4]­arene

✍ Scribed by Bolte, Michael ;Sakhaii, Peyman


Publisher
International Union of Crystallography
Year
2004
Tongue
English
Weight
261 KB
Volume
60
Category
Article
ISSN
1600-5368

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26,28-Bis­(benzyl­oxy)-25,27-di­hydroxy-
✍ Bolte, Michael ;Sakhaii, Peyman 📂 Article 📅 2004 🏛 International Union of Crystallography 🌐 English ⚖ 233 KB

Single-crystal X-ray study T = 173 K Mean '(C±C) = 0.004 A Ê Some non-H atoms missing Disorder in solvent or counterion R factor = 0.057 wR factor = 0.153 Data-to-parameter ratio = 14.4 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org

5,17-Bis(di­phenyl­phosphinoyl)-25,26,27
✍ Jeunesse, Catherine ;Matt, Dominique ;Jones, Peter G. ;Thönnessen, Holger 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 287 KB

The title compound, C 64 H 66 O 6 P 2 , possesses crystallographic twofold symmetry and displays the calixarene cone conformation. The two symmetry-independent calixarene rings subtend interplanar angles of 143.06 (3) and 97.71 (4) to the reference plane of the bridging C atoms. The phosphoryl O ato