Inorganic Chemistry
Article
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on the surface of the catalyst. Similarly to oxidative additions on
single metal centers, rate acceleration in the presence of
electron-withdrawing groups on the aryl halide ring is observed.
The Hammett analysis indicates that the Cu−O moiety in
which the aryl iodide is added acts more like a Rh(I) species
than a Ni(0) or Pd(0) intermediate. Future work will focus on
using experimental and computational studies to understand
the oxidative addition of aryl iodides to Cu/MnOx, test our
proposal that in the current Cu/MnOx mesoporous system the
Cu(III) oxidation state is avoided due to the delocalization of
the charge throughout the material, and elucidate the full
mechanism of cross-coupling.
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ASSOCIATED CONTENT
* Supporting Information
The Supporting Information is available free of charge on the
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S
Additional experimental details and characterization data
AUTHOR INFORMATION
Corresponding Authors
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(10) Ullmann, F.; Bielecki, J. Ueber Synthesen in der Biphenylreihe.
ORCID
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Present Address
§S.B.: Department of Chemistry, University of Wisconsin
Madison, 1101 University Avenue, Madison, Wisconsin 53706,
USA.
Notes
The authors declare no competing financial interest.
ACKNOWLEDGMENTS
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S.L.S. acknowledges the support of the U.S. Department of
Energy, Office of Basic Energy Sciences, Division of Chemical,
Biological and Geological Sciences, under grant DE-FG02-
86ER13622.A000. A.M.A.-B. thanks the University of Con-
necticut for generous start-up funds.
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A 1999, 189, 163−183. (b) Magne, V.; Garnier, T.; Danel, M.; Pale,
P.; Chassaing, S. Cu(I)-USY as a Ligand-Free and Recyclable Catalytic
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