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Cover Picture Methane Activation and Catalytic Ethylene Formation on Free Au2+ (Angew. Chem. Int. Ed. 52010)

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D 3461
www.angewandte.org
2010–49/5
Nanoprobes
M. Orrit et al.
Organocatalysis
B. Westermann et al.
Methane Activation
D. Schröder
ACIEFS 49 (5) 821–988 (2010) · ISSN 1433–7851 · Vol. 49 · No. 5
Cover Picture
Marcel Gsnger, Joon Hak Oh, Martin Kçnemann,
Hans Wolfgang Hçffken, Ana-Maria Krause, Zhenan Bao,* and
Frank Wrthner*
Cooperation is the key in the gas-phase formation of ethene by gold-dimer cations.
As the cycle in the cover picture shows, two methane molecules are required to
initiate the dehydrogenation step. A third methane molecule then cooperatively
triggers the release of ethylene. The background shows submarine methane evolution,
which represents an important geological methane source. In their Communication on
page 980 ff. T. M. Bernhardt, U. Landman, and co-workers present the results of their
combined gas-phase and theoretical investigation.
Nanoprobes
Optical signals from single molecules provide information on the structure and
dynamics of the environment around the molecule. In their Review on page 854 ff.,
M. Orrit et al. present the uses of single molecules in studying condensed matter.
Surface Patterning
Drying a solution of tobacco mosaic virus particles results in the formation of a range
of patterns. In their Communication on page 868 ff., Z. Niu, Q. Wang, and co-workers
report how the assembled structure can be controlled by a range of factors.
Halogen Bonding
Halogen bonding facilitates the assembly of gold nanoparticles into supramolecular
assemblies. In their Communication on page 926 ff., M. E. van der Boom and coworkers describe how the morphology of the aggregates can be controlled.
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formation, activation, int, au2, cover, angel, chem, free, 52010, catalytic, ethylene, picture, methane
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