Enzymes use through-space electric field effects to stabilize intermediates and catalyze reactions. Recent studies on Re(bpy)(CO)3Cl bound to Au surfaces showed large electric fields (&gt;20x108 V/m) at Au surfaces. While these have been illuminating, it is currently unclear how these large electric fields can affect simple reactions such as hydride formation in an electrochemical cell. Iridium piano-stool complexes are well known for their ability to form and transfer hydrides. The hydricity and therefore the selectivity and activity of these complexes are highly dependent on the electronic properties of the ligand attached. Here, the synthesis and characterization of surface-bound Ir piano-stool complexes on Au and TiO2 surfaces is described and the reactivity of these complexes is explored. In addition, the results are combined with computational chemistry and spectroelectrochemistry to further describe the system.

Synthesis, characterization and field effects on surface-bound Ir piano-stool complexes

ACS Fall 2020 Virtual Meeting

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.