Redox switch

In chemistry, a redox switch is a molecular device, which has two subunits, a functional component and a control component. The "control subunit" is redox-active, meaning that it can exist in either of two redox states. The "functional" component could have a variety of readouts, such as fluorescence, the binding of a substrate, or catalytic activity. The key feature of such redox switches is that the functional component is influenced by the control subunit. One of many examples of a redox switch consists of an anthracene substituent to a copper-thiacrown ether (14-ane-4) coordination complex. When in the cupric oxidation state, the anthracene does not fluoresce. When in the cuprous state, the assembly is highly fluorescent.[1] Several redox switches have been produced from ferrocenecarboxylic acid, which can be conjugated to a number of functional components. 1,1'-Diaminoferrocene has been incorporated into various diamide and diimine ligands, which form catalysts that exhibit redox switching.[2]

References

  1. ^ Fabbrizzi, Luigi (2020). "The Ferrocenium/Ferrocene Couple: A Versatile Redox Switch". Chemtexts. 6 (4). doi:10.1007/s40828-020-00119-6. S2CID 222215803.
  2. ^ Wang, Xinke; Thevenon, Arnaud; Brosmer, Jonathan L.; Yu, Insun; Khan, Saeed I.; Mehrkhodavandi, Parisa; Diaconescu, Paula L. (2014). "Redox Control of Group 4 Metal Ring-Opening Polymerization Activity toward l-Lactide and ε-Caprolactone". Journal of the American Chemical Society. 136 (32): 11264–11267. doi:10.1021/ja505883u. PMID 25062499. S2CID 22098566.

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