Problems and exercisesMolecular Recognition
1. Which crown?
Which crown ether would you choose to complex the Na+ ion? And K+?
2. “Naked” fluoride
Why does KF hardly react with 1-bromooctane in acetonitrile, but does react when 18-crown-6 is added?
3. In the cell
How are crown ethers related to the transport of ions across cell membranes?