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A cobalt mimochrome for photochemical hydrogen evolution from neutral water.
Edwards, Emily H; Le, Jennifer M; Salamatian, Alison A; Peluso, Noelle L; Leone, Linda; Lombardi, Angela; Bren, Kara L.
Afiliación
  • Edwards EH; Department of Chemistry, University of Rochester, 120 Trustee Rd., Rochester, NY 14627-0216, USA. Electronic address: eedward6@ur.rochester.edu.
  • Le JM; Department of Chemistry, University of Rochester, 120 Trustee Rd., Rochester, NY 14627-0216, USA. Electronic address: p.h.m.le@rug.nl.
  • Salamatian AA; Department of Chemistry, University of Rochester, 120 Trustee Rd., Rochester, NY 14627-0216, USA. Electronic address: asalamat@ur.rochester.edu.
  • Peluso NL; Department of Chemistry, University of Rochester, 120 Trustee Rd., Rochester, NY 14627-0216, USA. Electronic address: npeluso2@u.rochester.edu.
  • Leone L; Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 45, 80126 Naples, Italy. Electronic address: linda.leone@unina.it.
  • Lombardi A; Department of Chemical Sciences, University of Naples Federico II, Complesso Universitario Monte S. Angelo, via Cintia 45, 80126 Naples, Italy. Electronic address: alombard@unina.it.
  • Bren KL; Department of Chemistry, University of Rochester, 120 Trustee Rd., Rochester, NY 14627-0216, USA. Electronic address: bren@chem.rochester.edu.
J Inorg Biochem ; 230: 111753, 2022 05.
Article en En | MEDLINE | ID: mdl-35182844
A system for visible light-driven hydrogen production from water is reported. This system makes use of a synthetic mini-enzyme known as a mimochrome (CoMC6*a) consisting of a cobalt deuteroporphyrin and two attached peptides as a catalyst, [Ru(bpy)3]2+ (bpy = 2,2'-bipyridine) as a photosensitizer, and ascorbic acid as a sacrificial electron donor. The system achieves turnover numbers (TONs) up to 10,000 with respect to catalyst and optimal activity at pH 7. Comparison with related systems shows that CoMC6*a maintains the advantages of biomolecular catalysts, while exceeding other cobalt porphyrins in terms of total TON and longevity of catalysis. Herein, we lay groundwork for future study, where the synthetic nature of CoMC6*a will provide a unique opportunity to tailor proton reduction chemistry and expand to new reactivity.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Cobalto / Hidrógeno Idioma: En Revista: J Inorg Biochem Año: 2022 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Cobalto / Hidrógeno Idioma: En Revista: J Inorg Biochem Año: 2022 Tipo del documento: Article Pais de publicación: Estados Unidos