Photorelease of an Organic Molecule in Solution: Light-Triggered Blockage of a Hydrogen-Bonding Receptor Site


  • Financial support for this work was provided by the EPSRC (GR/S07438/01 to Y.M.)


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Bathed in light, the acyclic receptor 1 that binds a neutral guest molecule through hydrogen bonding (12) undergoes an intramolecular anthracene photodimerization reaction to yield a macrocyclic structure. The dramatic change in the structure of 1 from open to cyclic affects the binding properties of the receptor sites and leads to the exclusion of the guest molecule.