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Synthesis, characterization, and computational analysis of the dialanate dianion, [H3Al-AlH3]2−: a valence isoelectronic analogue of ethane

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Simon J. Bonyhady, Nicole Holzmann, Gernot Frenking, Andreas Stasch, Cameron Jones

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The first example of a well-defined binary, low-oxidation-state aluminum hydride species that is stable at ambient temperature, namely the dianion in [{(DepNacnac)Mg}2(μ-H)]2[H3Al-AlH3] (DepNacnac=[(DepNCMe)2CH], Dep=2,6-diethylphenyl), has been prepared via a magnesium(I) reduction of the alanate complex, (DepNacnac)Mg(μ-H)3AlH(NEt3). An X-ray crystallographic analysis has shown the compound to be a contact ion complex, which computational studies have revealed to be the source of the stability of the aluminum(II) dianion.


Original languageEnglish
Pages (from-to)8527-8531
Number of pages5
JournalAngewandte Chemie International Edition
Issue number29
Early online date9 Dec 2016
StatePublished - 10 Jul 2017

    Research areas

  • DFT calculations, Dialanate, Hydride, Magnesium(I), Metal–metal bonding

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