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5,17-Dibenzoyl-25,26,27,28-tetra­hydroxy­calix[4]arene

✍ Scribed by Yang, Yong ;Li, En-Chao ;Chen, Feng-Xiang ;Peng, Cheng ;Shi, Xian-Fa


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

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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

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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