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Self inclusion in a calix[5]arene structure; structure of the cone conformer of a pentahydroxy-p-tert-butylcalix[5]arene

Gallagher, John F. and Ferguson, George and Böhmer, Volker and Kraft, Dagmar (1994) Self inclusion in a calix[5]arene structure; structure of the cone conformer of a pentahydroxy-p-tert-butylcalix[5]arene. Acta Crystallographica Section C, 50 (1). pp. 73-77. ISSN 0108-2701

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Abstract

The pentahydroxy-p-tert-butylcalix[5]arene, 5,11,17,- 23,29-penta-tert-butylhexacyclo[25.3.1.13,7.19,13.115,19._ 121,25 ] pentatriaconta- 1 (31),3,5,7 (35),9,11,13(34), 15,17,- 19(33),21,23,25 (32),27,29-pentadecaene-31,32,3 3,34,- 35-pentaol-n-hexane (1/0.3), C55H70Os.0.3C6HI4 (I), adopts an open distorted chalice-shaped conformation in the solid state, primarily through O--H...O intramolecular hydrogen bonding involving all of the aromatic hydroxyl groups. The five phenolic O.- .O separations are in the range 2.735 (7)-2.880 (8) ,~ [mean 2.793 (8) ,4,], with all hydroxyl H atoms disordered equally over two sites. The aromatic rings are tilted back from the calixarene cavity producing a pentagonal-shaped cavity in which the tert-butyl group of a neighboring calix[5]arene related by a c-glide is enclathrated. This self-inclusion process extends through the lattice as a one-dimensional molecular 'zipper'.

Item Type:Article (Published)
Refereed:Yes
Subjects:Physical Sciences > Organic chemistry
Physical Sciences > Crystallography
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Science and Health > School of Chemical Sciences
Publisher:International Union of Crystallography
Official URL:http://dx.doi.org/10.1107/S0108270193007152
Copyright Information:© 1994 International Union of Crystallography
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:2468
Deposited On:11 Mar 2009 18:03 by DORAS Administrator. Last Modified 11 Mar 2009 18:03

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