Exposing elusive cationic magnesium-chloro aggregates in aluminate complexes through donor control

Brouillet, Etienne V. and Kennedy, Alan R. and Koszinowski, Konrad and McLellan, Ross and Mulvey, Robert E. and Robertson, Stuart D. (2016) Exposing elusive cationic magnesium-chloro aggregates in aluminate complexes through donor control. Dalton Transactions, 45 (13). pp. 5590-5597. ISSN 1477-9234

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    Abstract

    The cationic magnesium moiety of magnesium organohalo aluminate complexes, relevant to rechargeable Mg battery electrolytes, typically takes the thermodynamically favourable dinuclear [Mg2Cl3]+ form in the solid-state. We now report that judicious choice of Lewis donor allows the deliberate synthesis and isolation of the hitherto only postulated mononuclear [MgCl]+ and trinuclear [Mg3Cl5]+ modifications, forming a comparable series with a common aluminate anion [(Dipp)(Me3Si)NAlCl3]. By pre-forming the Al-N bond prior to introduction of the Mg source, a consistently reproducible protocol is reported. Usage of the green solvent 2-methyltetrahydrofuran in place of THF in the context of Mg/Al battery electrolyte type complexes is also promoted.

    ORCID iDs

    Brouillet, Etienne V. ORCID logoORCID: https://orcid.org/0000-0001-5854-1983, Kennedy, Alan R. ORCID logoORCID: https://orcid.org/0000-0003-3652-6015, Koszinowski, Konrad, McLellan, Ross ORCID logoORCID: https://orcid.org/0000-0001-9700-0258, Mulvey, Robert E. ORCID logoORCID: https://orcid.org/0000-0002-1015-2564 and Robertson, Stuart D. ORCID logoORCID: https://orcid.org/0000-0002-9330-8770;
    • Item type:Article
      ID code:55636
      Dates:
      Date
      Event
      7 April 2016
      Published
      22 February 2016
      Published Online
      19 February 2016
      Accepted
      Keywords:post-lithium ion batteries, magnesium, inorganic metal salt, Chemistry, Chemistry(all), SDG 7 - Affordable and Clean Energy
      Subjects:Science > Chemistry
      Department:Faculty of Science > Pure and Applied Chemistry
      Depositing user: Pure Administrator
      Date deposited:22 Feb 2016 14:46
      Last modified:23 Sep 2021 05:30
      Related URLs:
      URI:https://strathprints.strath.ac.uk/id/eprint/55636
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