Structure-Activity Relationships for Hypervalent Iodine Electrocatalysis Academic Article uri icon

abstract

  • AbstractThe design and optimization of novel electrocatalysts requires robust structureactivity data to correlate catalyst structure with electrochemical behavior. Aryl iodides have been gaining attention as metal-free electrocatalysts but experimental data are available for only a limited set of structures. Herein we report electrochemical data for a family of 70 aryl iodides. Half-peak potentials are utilized as proxies for reduction potentials and reveal that, despite differences in electrochemical reversibility, the potential for one-electron oxidation of 4-substituted aryl iodides to the corresponding iodanyl radicals is well-correlated with standard Hammett parameters. Additional data are presented for 3- and 2-substituted aryl iodides, including structures with potentially chelating 2-substituents that are commonly encountered in hypervalent iodine reagents. Finally, potential decomposition processes relevant to the (in)stability of iodanyl radicals are presented. We anticipate that the collected data will advance the design and application of aryl iodide electrocatalysis.

published proceedings

  • SYNTHESIS-STUTTGART

altmetric score

  • 6.55

author list (cited authors)

  • Frey, B. L., Thai, P., Patel, L., & Powers, D. C.

citation count

  • 0

complete list of authors

  • Frey, Brandon L||Thai, Phong||Patel, Lauv||Powers, David C

publication date

  • September 2023

publisher