Photoexcited state chemistry of metal-oxygen complexes
- 주제(기타) Chemistry, Inorganic & Nuclear
- 설명문(일반) [Saracini, Claudio; Fukuzumi, Shunichi; Lee, Yong-Min; Nam, Wonwoo] Ewha Womans Univ, Dept Chem & Nano Sci, Seoul 03760, South Korea; [Fukuzumi, Shunichi] Meijo Univ, Fac Sci & Engn, Nagoya, Aichi 4680073, Japan
- 등재 SCIE, SCOPUS
- 발행기관 ROYAL SOC CHEMISTRY
- 발행년도 2018
- URI http://www.dcollection.net/handler/ewha/000000155655
- 본문언어 영어
- Published As http://dx.doi.org/10.1039/c8dt03604g
초록/요약
Recent advances on the excited state chemistry of metal-oxygen synthetic complexes based on earth-abundant metals such as copper, cobalt, and manganese are reviewed to show a much enhanced reactivity of the photoexcited states as compared with their relative ground states. Mononuclear copper(II)-superoxide and dinuclear copper(II)-peroxo complexes underwent copper-oxygen bond cleavage, dioxygen release, and copper(I)/dioxygen rebinding upon photoexcitation at low temperature. Photoirradiation of the cobalt-oxygen compound [(TAML)Co-IV(O)](2-) (6) (TAML = tetraamidomacrocyclic ligand) at 5 degrees C yielded a cobalt-oxygen excited state with 0.6(1) ns lifetime, showing a high reactivity in the bimolecular electron-transfer oxidations of m-xylene and anisole. An extremely long-lived excited state was generated upon photoexcitation of a manganese(IV)-oxo complex binding two Sc(OTf)(3) molecules, which enabled the hydroxylation of benzene.
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