Abstract
The structure of thep-t-butyldihomooxacalix[4]arene triethylamine (1 : 2 complex has been determined by X-ray crystallography. Crystals are monoclinic, space groupCc,a = 22.821(3),b = 15.257(3),c = 16.365(2) Å,β = 97.44(1)°,V = 5650(1) Å3,Z = 4,D calc = 1.03 g cm−3. One triethylamine (Et3N) molecule has one of its ethyl groups pointing inside the cavity of a calixarene molecule; its nitrogen atom is directed exo to this calixarene molecule and is involved in a hydrogen bond with one of the hydroxy groups of a neighbouring calixarene molecule. This scheme leads to columns of alternating host and guest molecules. The other Et3N molecule is in the interhost space. This feature allows us to define the title compound as a complex/clathrate hybrid.
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Supplementary data relating to this article are deposited with the British Library as Supplementary Publication No. SUP 82144 (8 pages).
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Bavoux, C., Perrin, M. A hydrogen bond between a calixarene (as host and its guest: Crystal and molecular structure of thep-t-butyldihomooxacalix[4]arene : Triethylamine (1 : 2) complex/clathrate. J Incl Phenom Macrocycl Chem 14, 247–256 (1992). https://doi.org/10.1007/BF01045984
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DOI: https://doi.org/10.1007/BF01045984