5,11,17,23-Tetra-tert-butyl-25,26,27,28-tetramethoxycalix[4]arene dichloromethane hemisolvate

Fischer, Conrad and Gruber, Tobias and Seichter, Wilhelm and Schindler, Diana and Weber, Edwin (2008) 5,11,17,23-Tetra-tert-butyl-25,26,27,28-tetramethoxycalix[4]arene dichloromethane hemisolvate. Acta Crystallographica Section E: Structure Reports Online, 64 (4). o673-o673. ISSN 0365-110X

Full content URL: http://dx.doi.org/10.1107/S1600536808002304

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Abstract

In the title compound, C(48)H(64)O(4)·0.5CH(2)Cl(2), both crystallographically independent calixarene mol-ecules display a partial cone conformation. Their crystal packing is stabilized by C-H⋯π contacts involving the meth-oxy groups. The solvent mol-ecule is located inter-stitially between two calixarene units with C-H⋯Cl contacts to meth-oxy and tert-butyl groups. One tert-butyl residue of each calixarene mol-ecule is disordered over two positions (occupancies 0.60/0.40 and 0.63/0.37), resulting in bond distances that deviate from ideal values. The tetra-mer calixarene mol-ecules present models with approximate non-crystallographic C(s) symmetry.

Keywords:X-ray diffraction, Crystal engineering
Subjects:F Physical Sciences > F131 Crystallography
F Physical Sciences > F160 Organic Chemistry
Divisions:College of Science > School of Pharmacy
ID Code:20022
Deposited On:14 Jan 2016 21:24

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