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An Amphiphilic Molecular Basket Sensitive to Both Solvent Changes and UV Irradiation

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journal contribution
posted on 08.12.2006, 00:00 by Eui-Hyun Ryu, Yan Zhao
A molecular basket was obtained by linking four cholate units to a cone-shaped calix[4]arene scaffold through azobenzene spacers. The molecule turns its polar faces inward in nonpolar solvents to bind polar molecules such as sugar derivatives. In polar solvents, the nonpolar faces turn inward, allowing the binding of hydrophobic guests such as pyrene. The molecule can also respond to UV irradiation by transcis isomerization of the azobenzene spacers. Response toward both solvents and UV light is fully reversible.

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