Self-assembled molecular capsule based on the hydrogen-bonding interaction between two different calix[4]arenes

Abstract

Intermolecularly hydrogen-bonded molecular container constructed from two calix[4]arene derivatives having carboxylic acids ( 1) or pyridyl groups ( 2) on their upper rim was designed for the first time. The formation of a simple but very interesting self-assembled molecular capsule was confirmed by physical measurements: i.e., solubility, molecular weight, and fluorescence spectroscopy.