"Supramolecular circuitry": three chemiluminescent, Cucurbit[7]uril-controlled on/off switches
Eric Masson1, Yasser M Shaker, Jean-Pierre Masson
1Department of Chemistry and Biochemistry, Ohio University, Athens, Ohio 45701, USA. masson@ohio.edu
Organic Letters
|June 30, 2011
Abstract:
Three Cucurbit[7]uril-controlled chemiluminescent on/off switches based on the lucigenin motif have been synthesized. Light emission is triggered upon addition of sodium peroxide, interrupted or dimmed in the presence of Cucurbit[7]uril, and restored upon injection of a competitive guest. The process, which can be mimicked by a simple resistor-capacitor circuit, is rationalized by examining the role of the macrocyclic host on the network of equilibria involved in the chemiluminescent process.
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