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Inside Cover [Al(Al3R3)2] Prototype of a Metalloid Al Cluster or a SandwichStabilized Al Atom (Angew. Chem. Int. Ed. 192007)

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Inside Cover
Ping Yang, Ralf Kppe, Taike Duan, Jens Hartig, Gunar Hadiprono,
Bernd Pilawa, Ilka Keilhauer, and Hansgeorg Schnckel*
Unique among metalloid clusters is the [Al7R6] structural element presented by H.
Schnckel and co-workers, which on the basis of the topology of its seven aluminum
atoms is analogous to the metal and thus a molecular model for a single-atom contact.
The Communication on page 3579 ff. reports that the oxidation and reduction of the
neutral [Al7R6] cluster—like the removal and addition of an electron in conductance
experiments—leads to drastic changes in the bond lengths within the {Al}7 framework
and thus to different bonding properties.
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int, cover, angel, clusters, chem, atom, insider, al3r3, 192007, sandwichstabilized, metalloid, prototype
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