Acta Cryst. (2007). E63, o2097-o2098  [ doi:10.1107/S1600536807013785 ]

1,3-Alternate thiacalix[4]bisazacrown chloroform disolvate

X. Li, S.-L. Gong, Y.-F. Liu, Q. Zheng and Y.-Y. Chen

Abstract: In the title compound [systematic name: 5,11,17,23-tert-butyl-25,27:26,28-bis(2,8-dioxo-3,7-diazanonane-1,9-diyldioxy)-2,8,14,20-tetrathiacalix[4]arene chloroform disolvate], C₅₄H₆₈N₄O₈S₄·2CHCl₃, the thiacalixarene molecule, locked in the 1,3-alternate conformation by two amide bridges, possesses twofold rotation symmetry with an cage-like cavity.

Online 4 April 2007

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