Modulation of Benzene or Naphthalene Binding to Palladium Cluster Sites by the Backside-Ligand Effect

The backside‐ligand modulation strategy to enhance the substrate binding property of Pd clusters is reported. The benzene or naphthalene binding ability of Pd3 or Pd4 clusters is enhanced significantly by the backside cyclooctatetraene ligand, leading to the formation of the first solution‐stable be...

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Bibliographic Details
Published in:Angewandte Chemie 2015-02, Vol.127 (8), p.2512-2516
Main Authors: Ishikawa, Yuki, Kimura, Seita, Takase, Kohei, Yamamoto, Koji, Kurashige, Yuki, Yanai, Takeshi, Murahashi, Tetsuro
Format: Article
Language:English
Subjects:
Benzene
Benzol
Binding
Chemistry
Cluster
Clusters
Hydrocarbons
Ligandeneffekte
Ligands
Metal clusters
Modulation
Naphthalene
Naphthalin
Palladium
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Summary:The backside‐ligand modulation strategy to enhance the substrate binding property of Pd clusters is reported. The benzene or naphthalene binding ability of Pd3 or Pd4 clusters is enhanced significantly by the backside cyclooctatetraene ligand, leading to the formation of the first solution‐stable benzene‐ or naphthalene Pd clusters. The present results imply that the ligand design of the metal clusters, especially for the backside ligand of the metal cluster site, is crucial to acquire a desired reactivity of metal clusters. Die Strategie der rückseitigen Ligandenmodulierung wird genutzt, um die Substratbindungseigenschaften von Pd‐ Clustern zu erhöhen. Die Bindung von Benzol oder Naphthalin an Pd3‐ oder Pd4‐Cluster wird durch den Cyclooctatetraen‐Liganden (im Schema oval dargestellt) an der Clusterrückseite signifikant verstärkt. Der Ansatz führt zu den ersten isolierbaren μ3‐Benzol‐Pd3‐ und μ4‐Naphthalin‐Pd4‐Clustern.
ISSN:0044-8249
1521-3757
DOI:10.1002/ange.201409499