Abstract
The asymmetric unit of the title compound, C48H54O5S4·N(C2H5)4 +·Cl−, contains two tetra-tert-butyl-[(benzoyl)methoxy]-trihydroxy-tetrathiacalix[4]arene molecules, two tetraethylammonium cations and two chloride anions. The two calixarene molecules in the asymmetric unit each display a cone conformation. There are no significant differences between the two independent molecules. The guest species do not sit within the calixarene ‘buckets’. In the crystal, extensive O—H⋯O, O—H⋯S and O—H⋯Cl hydrogen bonds and weak C—H⋯O, C—H⋯S and C—H⋯Cl interactions link the thiacalixarene molecules, tetraethylammonium cations and chloride anions, forming a three-dimensional network encompassing channels running parallel to the a-axis direction. The structure contains a solvent-accessible void of 76 (3) Å3, but no solvent molecule could reasonably be located. The crystal studied was an inversion twin with a 0.57 (8):0.43 (8) domain ratio.
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