Reduction of Na+ within a {Mg2Na2} Assembly

Michael Hill, Han-Ying Dennis Liu, Sam Neale, Claire McMullin, Mary Mahon, Emma Richards

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17 Citations (SciVal)
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Abstract

Ionic compounds containing sodium cations are notable for their stability and resistance to redox reactivity unless highly reducing electrical potentials are applied. Here we report that treatment of a low oxidation state {Mg2Na2} species with non-reducible organic bases induces the spontaneous and completely selective extrusion of sodium metal and oxidation of the Mg(I) centers to the more conventional Mg(II) state. Although these processes are also characterized by a structural reorganisation of the initially chelated diamide spectator ligand, computational quantum chemical studies indicate that intramolecular electron transfer is abetted by the frontier molecular orbitals (HOMO/LUMO) of the {Mg2Na2} ensemble, which arise exclusively from the 3s valence atomic orbitals of the constituent sodium and magnesium atoms.
Original languageEnglish
Article numbere202213670
Number of pages9
JournalAngewandte Chemie International Edition
Volume62
Issue number3
Early online date16 Nov 2022
DOIs
Publication statusPublished - 16 Jan 2023

Bibliographical note

We thank the EPSRC (EP/R020752/1) for support of this research. This research made use of theAnatra High Performance Computing (HPC) Service at the University of Bath.

Keywords

  • Density Functional Theory
  • Magnesium
  • Main Group Chemistry
  • Redox Chemistry
  • Sodium

ASJC Scopus subject areas

  • Catalysis
  • General Chemistry

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