Ir(III)-Naphthoquinone complex as a platform for photocatalytic activity

Walter D. Guerra, Hannah J. Sayre, Hunter H. Ripberger, Emmanuel Odella, Gregory D. Scholes, Thomas A. Moore, Robert R. Knowles, Ana L. Moore

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Inspired by the primary events that take place in Photosystem II (PSII), we designed and synthesized a heteroleptic Ir(III) complex featuring an attached naphthoquinone (NQ) as an electron transfer (ET) auxiliary reminiscent of the plastoquinone electron acceptor in PSII. In this design, NQ is covalently attached to the 2,2′-bipyridyl (bpy) ligand of [Ir(dF(CF3)ppy)2(bpy)][PF6], (dF(CF3)ppy = 2-(2,4-difluorophenyl)-5-(trifluoromethyl)pyridine). Following excitation of the photocatalyst ([Ir(dF(CF3)ppy)2(bpy-NQ)][PF6]), reduced NQ (NQ•‒) was observed in transient absorption spectroscopy. This novel catalyst has potential applications in oxidative and reductive photocatalytic processes.

Original languageEnglish (US)
Article number100098
JournalJournal of Photochemistry and Photobiology
StatePublished - Mar 2022

All Science Journal Classification (ASJC) codes

  • Electrochemistry


  • Artificial photosynthesis
  • electron transfer (ET)
  • heteroleptic Ir(III) complexes
  • photocatalyst
  • quinones


Dive into the research topics of 'Ir(III)-Naphthoquinone complex as a platform for photocatalytic activity'. Together they form a unique fingerprint.

Cite this