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Oxidation Reactivity of Bis(μ‐oxo) Dinickel(III) Complexes: Arene Hydroxylation of the Supporting Ligand |
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| Authors: | Kaoru Honda Jaeheung Cho Prof. Dr. Takahiro Matsumoto Dr. Jungyun Roh Hideki Furutachi Dr. Takehiko Tosha Dr. Minoru Kubo Dr. Shuhei Fujinami Prof. Takashi Ogura Prof. Teizo Kitagawa Prof. Masatatsu Suzuki Prof. |
| Affiliation: | 1. Department of Chemistry, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma‐machi, Kanazawa 920‐1192 (Japan), Fax: (+81)?76‐264‐5742, http://chem.s.kanazawa‐u.ac.jp/coord/index.html;2. Current address: Department of Chemistry and Nano Science, Ewha Womans University, Seoul 120‐750 (Korea);3. Okazaki Institute for Integrative Bioscience, National Institutes of Natural Sciences, Myodaiji, Okazaki, 444‐8787 (Japan);4. Picobiology Institute, Graduate School of Life Science, University of Hyogo, Ako‐gun, Hyogo 678‐1297 (Japan) |
| Abstract: | In the nick(el) of time : Bis(μ‐oxo) dinickel(III) complexes 2 (see scheme), generated in the reaction of 1 with H2O2, are capable of hydroxylating the xylyl linker of the supporting ligand to give 3 . Kinetic studies reveal that hydroxylation proceeds by electrophilic aromatic substitution. The lower reactivity than the corresponding μ‐η2:η2‐peroxo dicopper(II) complexes can be attributed to unfavorable entropy effects.  |
| Keywords: | hydroxylation kinetics nickel oxidation reaction mechanisms |