4.8 Article

Generation of an Isolable, Monomeric Manganese(V)-Oxo Complex from O2 and Visible Light

Journal

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 134, Issue 19, Pages 8014-8017

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/ja300888t

Keywords

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Funding

  1. NSF [CHE0909587, CHE0840463]
  2. Harry and Cleio Greer Fellowship
  3. Division Of Chemistry
  4. Direct For Mathematical & Physical Scien [0909587] Funding Source: National Science Foundation

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The direct conversion of a Mn-III complex [(TBP(8)Cz)Mn-III (1)] to a Mn-V-oxo complex [(TBP(8)Cz)Mn-V(O) (2)] with O-2 and visible light is reported. Complex 1 is also shown to function as an active photocatalyst for the oxidation of PPh3 to OPPh3. Mechanistic studies indicate that the photogeneration of 2 does not involve singlet oxygen but rather likely occurs via a free-radical mechanism upon photoactivation of 1.

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