Tuning Energetics of 2 e^-/2H⁺ PCET Properties with Model Ru-bisamido Complexes.

ABSTRACT: Most redox processes that break/form bonds involve net 2e^- changes, and many are coupled to protons. Yet most proton-coupled electron transfer (PCET) studies focus on 1e^-/1H⁺ reactions. Reported here is a family of molecular models that undergo tunable 2e^-/2H⁺ redox changes. Complexes [(X₂bpy)Ru^II(en*)₂](PF₆)₂ and [(X₂bpy)Ru^IV(en*-H)₂](PF₆)₂ have been synthesized with bpy=2,2'-bipyridine with 4,4'-subtitutions X=-NMe₂, -OMe, -Me, -H, -CF₃; and en*=2,3-dimethyl-2,3-butanediamine. They have been characterized by IR, UV-vis, and NMR spectroscopies, XRD, electrochemistry, mass spectrometry, DFT and (TD)DFT com

SUBMITTER: Cattaneo M 

PROVIDER: S-EPMC11556527 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature