| Sodium Periodate as a Primary Oxidant for Water-Oxidation Catalysts. | |
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MedLine Citation:
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PMID: 22587015 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Sodium periodate was characterized as a primary chemical oxidant for the catalytic evolution of oxygen at neutral pH using a variety of water-oxidation catalysts. The visible spectra of solutions formed from Cp*Ir(bpy)SO(4) during oxygen-evolution catalysis were measured. NMR spectroscopy suggests that the catalyst remains molecular after several turnovers with sodium periodate. Two of our [Cp*Ir(bis-NHC)][PF(6)](2) complexes, along with other literature catalysts, such as the manganese terpyridyl dimer, Hill's cobalt polyoxometallate, and Meyer's blue dimer, were also tested for activity. Sodium periodate was found to function only for water-oxidation catalysts with low overpotentials. This specificity is attributed to the relatively low oxidizing capability of sodium periodate solutions relative to solutions of other common primary oxidants. Studying oxygen-evolution catalysis by using sodium periodate as a primary oxidant may, therefore, provide preliminary evidence that a given catalyst has a low overpotential. |
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Authors:
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Alexander R Parent; Timothy P Brewster; Wendy De Wolf; Robert H Crabtree; Gary W Brudvig |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-5-15 |
Journal Detail:
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Title: Inorganic chemistry Volume: - ISSN: 1520-510X ISO Abbreviation: - Publication Date: 2012 May |
Date Detail:
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Created Date: 2012-5-16 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0366543 Medline TA: Inorg Chem Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Chemistry, Yale University , P.O. Box 208107, New Haven, Connecticut 06520-8107, United States. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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