A 1:1:1 chloroform/tetrahydrofuran solvate of p-tert-butyltetrahomodioxacalix[4]arene.
The title compound, 7,13,21,27-tetra-tert-butyl-3,17-dioxapentacyclo[23.3.1.1(5,9).1(11,15).1(9,23)]ditriaconta-1(29),5,7,9(30),11(31),12,14,19(32),20,22,25,27-dodecaene-29,30,31,32-tetraol, crystallizes as a solvate with one molecule of chloroform and one molecule of tetrahydrofuran, C46H60O6.CHCl3).C4H8O. The calixarene assumes a cone-like conformation stabilized by intramolecular hydrogen bonds involving both phenolic and ether O atoms. The two solvent molecules are located in each of the two half-cone cavities of the calixarene.
Thuéry
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CEA/Saclay, SCM (CNRS URA 331), Bâtiment 125, 91191 Gif-sur-Yvette, France. thuery@drecam.cea.fr
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Vicens
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