Synthesis, Characterization, and Computational Analysis of the Dialanate Dianion, [H3Al-AlH3]2−: A Valence Isoelectronic Analogue of Ethane

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

Research output: Contribution to journalArticleResearchpeer-review

22 Citations (Scopus)


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
Publication statusPublished - 2017


  • DFT calculations
  • dialanate
  • hydride
  • magnesium(I)
  • metal–metal bonding

Cite this