TY - RPRT TI - Tunable Multisite Proton-Coupled Electron Transfer Mediators: Distinct Pathways for Substrate Reduction Versus Competing Hydrogen Evolution AU - Ovian, John M. [California Institute of Technology (CalTech), Pasadena, CA (United States)] (ORCID:0000000153625010) AU - Derosa, Joseph [California Institute of Technology (CalTech), Pasadena, CA (United States)] (ORCID:0000000186724875) AU - Li, Mengdi [California Institute of Technology (CalTech), Pasadena, CA (United States)] (ORCID:0000000261988396) AU - Peters, Jonas C. [California Institute of Technology (CalTech), Pasadena, CA (United States)] (ORCID:0000000266104414) PY - 2026 DO - 10.1021/jacs.5c18522 UR - https://www.osti.gov/biblio/3363508 ID - 3363508 ER -