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Invariant water inclusion property of 1,3-alternate p-tert-butylthiacalix[4]arene tetra-methyleneoxycarboxylic acid†
Yan Li,Weiping Yang,Rong Guo,Yuanyin Chen,Shuling Gong
CrystEngComm Pub Date : 12/12/2011 00:00:00 , DOI:10.1039/C1CE05800B
Abstract

The self-assembly behavior of 1,3-alternate p-tert-butylthiacalix[4]arene tetra-methyleneoxycarboxylic acid (I) and 1,3-alternate p-H-thiacalix[4]arene tetra-methyleneoxycarboxylic acid (II) in ethanol, acetone and in the existence of 4,4′-bipyridine were studied by single-crystal X-ray diffraction methods. Compound I maintains almost the same tubular shape molecular structure and the unique water inclusion property ([I ∩ 2H2O]) in the three different crystallization media because of the steric hindrance posed by the t-butyl groups. While for compound II, its molecular structure and water inclusion property are susceptible to the crystallization medium due to the absence of the t-butyl groups.

Graphical abstract: Invariant water inclusion property of 1,3-alternate p-tert-butylthiacalix[4]arene tetra-methyleneoxycarboxylic acid
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