Electrochemical Properties of Ru Polypyridyl Phosphonates. Issue 11 (22nd February 2023)

• Record Type: Journal Article
• Authors: Herath, Hashini N. K.; MacRae, Austin L.; Ugrinov, Angel; Morello, Glenn R.; Parent, Alexander R.
• Is Part Of: European journal of inorganic chemistry. Volume 26:Issue 11(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2023-02-22
• Subjects: Ligand design -- Ligand effects -- Oxidation -- Redox chemistry -- Ruthenium; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.202200747
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract: [Ru(bpyPO3 H2 )(bpy)Cl]Cl (bpyPO3 H2 =6, 6'‐bipyridin‐2‐yl)phosphonic acid) and [Ru(tpy)(MepyPO3 H2 )Cl]Cl (MepyPO3 H2 =(pyridin‐2‐ylmethyl)phosphonic acid) were synthesized and characterized spectroscopically and electrochemically. Each compound was found to exhibit proton‐coupled electron transfer (PCET). In the case of [Ru(bpyPO3 H2 )(bpy)Cl]Cl, a Ru(V/IV) couple was detected at 1.4 V vs . NHE. Each complex was tested for its ability to catalyze C−H bond oxidation using a variety of sacrificial oxidants, and it was found that under aqueous conditions [Ru(bpyPO3 H2 )(bpy)Cl]Cl oxidizes secondary C−H bonds using sodium periodate (NaIO4 ) as the primary oxidant. Abstract : Ru complexes containing polypyridyl phosphonate ligands were synthesized and characterized spectroscopically and electrochemically. Each compound was found to exhibit proton‐coupled electron transfer (PCET).