Molecular recognition of chloroform by divergent polymorphic transitions in tert-butylthiacalix[4]arene tetrasubstituted with N-(2-hydroxyethyl) carbamoylmethoxy groups in a lower rim

Abstract

The genuine molecular recognition of chloroform by a tert-butylthiacalix[4] arene derivative was observed, where the host remembers the guest above its elimination point showing two polymorphic transitions with opposite heat effects. © 2011 Mendeleev Communications. All rights reserved.