Novel Modifications of Gold, Rhodium, and Ruthenium—M13 Clusters as Building Blocks of “Superclusters”

Authors

  • Prof. Dr. Günter Schmid,

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    1. Institut für Anorganische Chemie der Universität, Universitätsstrasse 5–7, D-4300 Essen 1 (FRG)
    • Institut für Anorganische Chemie der Universität, Universitätsstrasse 5–7, D-4300 Essen 1 (FRG)
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  • Dipl.-Chem. Norbert Klein

    1. Institut für Anorganische Chemie der Universität, Universitätsstrasse 5–7, D-4300 Essen 1 (FRG)
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  • Large Transitioh-Metal Clusters, Part 5. This work was supported by the Deutsche Forschungsgemeinschaft, the Fonds der Chemischen Industrie, and Degussa AG. We thank Dr. R. Boese for valuable discussions and Mrs. G. Schmid for help with the construction of the models. Thanks are also due to Dr. H. Schweder for the SEM photographs and to Mr. W. Hüben for the DMC measurements—Part 4:[7].

Abstract

Not alchemistry but rather chemistry is the basis for preparing a gold modification: [Au55(PPh3)12Cl6] can be degraded to naked Au13 clusters in CH2Cl2 solution by application of a 20-V d.c. potential, the outer layer of the cluster being lost. These smaller clusters reorganize, in turn, the form superclusters (Au13)13 and microcrystallites [(Au13)13]n, whose structure were determined by means of their X-ray powder data.

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