Tag Archives: IR spectroscopy
Calix[4]arene can recognize metals captured in the cavity by IR absorption
![AoS. Calix[4]arene can recognize metals captured in the cavity by IR absorption.](https://atlasofscience.org/wp-content/uploads/2020/10/cone-shaped-C4A-AoS-t-150x150.jpg)
Calix[4]arene (C4A), composed of four phenols connected with methylene chains, has been used extensively as host molecules in supramolecular chemistry. C4A has a dominant, cone-type conformation formed by a strong hydrogen-bonded network with four OH groups (Fig.
