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Calix[4]arenes as building blocks for molecular receptors

โœ Scribed by Jan-Dirk van Loon; Jan F. Heida; Willem Verboom; David N. Reinhoudt

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
726 KB
Volume
111
Category
Article
ISSN
0165-0513

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โœฆ Synopsis

Abstract

Molecular receptors for organic molecules are described in which calix[4]arene is used as a molecular platform rather than for its cavity. This is illustrated by the synthesis of a receptor for barbiturates, a calix[4]arene in a cone conformation containing two diaminotriazine moieties at the upper rim. This receptor (9) forms a molecular cleft in which phenobarbital complexes by hydrogen bonding both triazine rings. The association constant K is 520 M ^1^, when the selfโ€association of the barbiturate is taken into account.

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