Your browser doesn't support javascript.
loading
Polyoxovanadate-Alkoxide Clusters as a Redox Reservoir for Iron.
Li, Feng; Carpenter, Stephanie H; Higgins, Robert F; Hitt, Mark G; Brennessel, William W; Ferrier, Maryline G; Cary, Samantha K; Lezama-Pacheco, Juan S; Wright, Joshua T; Stein, Benjamin W; Shores, Matthew P; Neidig, Michael L; Kozimor, Stosh A; Matson, Ellen M.
Afiliación
  • Li F; Department of Chemistry, University of Rochester , Rochester, New York 14627, United States.
  • Carpenter SH; Department of Chemistry, University of Rochester , Rochester, New York 14627, United States.
  • Higgins RF; Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States.
  • Hitt MG; Department of Chemistry, University of Rochester , Rochester, New York 14627, United States.
  • Brennessel WW; Department of Chemistry, University of Rochester , Rochester, New York 14627, United States.
  • Ferrier MG; Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States.
  • Cary SK; Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States.
  • Lezama-Pacheco JS; Stanford University , Stanford, California 94305, United States.
  • Wright JT; Department of Physics and CSRRI, Illinois Institute of Technology , 2101 S. Dearborn Street Chicago, Illinois 60616, United States.
  • Stein BW; Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States.
  • Shores MP; Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States.
  • Neidig ML; Department of Chemistry, University of Rochester , Rochester, New York 14627, United States.
  • Kozimor SA; Los Alamos National Laboratory , Los Alamos, New Mexico 87545, United States.
  • Matson EM; Department of Chemistry, University of Rochester , Rochester, New York 14627, United States.
Inorg Chem ; 56(12): 7065-7080, 2017 Jun 19.
Article en En | MEDLINE | ID: mdl-28548499
Inspired by the multielectron redox chemistry achieved using conventional organic-based redox-active ligands, we have characterized a series of iron-functionalized polyoxovanadate-alkoxide clusters in which the metal oxide scaffold functions as a three-dimensional, electron-deficient metalloligand. Four heterometallic clusters were prepared through sequential reduction, demonstrating that the metal oxide scaffold is capable of storing up to four electrons. These reduced products were characterized by cyclic voltammetry, IR, electronic absorption, and 1H NMR spectroscopies. Moreover, Mössbauer and X-ray absorption spectroscopies suggest that the redox events involve primarily the vanadium ions, while the iron atoms remained in the 3+ oxidation state throughout the redox series. In this sense, the vanadium portion of the cluster mimics a conventional organic-based redox-active ligand bound to an iron(III) ion. Magnetic coupling within the hexanuclear cluster was characterized using SQUID magnetometry. Overall, the results suggest extensive electronic delocalization between the metal centers of the cluster core. These results demonstrate the ability of electronically flexible, reducible metal oxide supports to function as redox-active reservoirs for transition-metal centers.
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Inorg Chem Año: 2017 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Inorg Chem Año: 2017 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Estados Unidos