Cover Image, Volume 51, Issue 4


original image

Brønsted superacids generated by the photolysis of diaryliodonium salts can be trapped by complexing with crown ethers, as presented by James V. Crivello and Michael F. Aldersley on page 801. The figure shows a Spartan '10 molecular model of the cation of the hydronium hexafluoroantimonate-18-crown-6 ether supramolecular complex that was isolated as a crystalline solid.