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A Threefold AlH2-Coordinated Carbon Atom as Part of the First Carbaalanate

Authors

  • Andreas Stasch Dipl.-Chem.,

    1. Institut für Anorganische Chemie, Georg-August-Universität, Tammannstrasse 4, 37 077 Göttingen, Germany, Fax: (+49) 551-393-373
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  • Herbert W. Roesky Prof. Dr.,

    1. Institut für Anorganische Chemie, Georg-August-Universität, Tammannstrasse 4, 37 077 Göttingen, Germany, Fax: (+49) 551-393-373
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  • Paul von Ragué Schleyer Prof. Dr.,

    1. Computational Chemistry Annex, The University of Georgia, Athens, GA 30 602-2525, USA
    2. Institut für Organische Chemie 1, Universität Erlangen-Nürnberg, Henkestrasse 42, 91 054 Erlangen, Germany
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  • Jörg Magull Prof. Dr.

    1. Institut für Anorganische Chemie, Georg-August-Universität, Tammannstrasse 4, 37 077 Göttingen, Germany, Fax: (+49) 551-393-373
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  • This work was supported by the Deutsche Forschungsgemeinschaft, the Fonds der Chemischen Industrie, and the Göttinger Akademie der Wissenschaften.

Abstract

original image

The first carbaalanate consists of a carbaalane dianion [(AlH)8(CCH2tBu)6]2− that is coordinated through hydride bridges to two lithium ions on opposite sides of the cluster (see picture). Additionally, the lithium ions are each further coordinated to a neutral [tBuCH2C(AlH2⋅NMe3)3] unit. In this arrangement, the lithium ion prevents condensation of the [tBuCH2C(AlH2⋅NMe3)3] units.

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