Mixing and matching N, N- and N, O-chelates in anionic Mg(I) compounds: synthesis and reactivity with RNCNR and CO

Andrea O'Reilly; Matthew D Haynes; Zoë R Turner; Claire L McMullin; Sjoerd Harder; Dermot O'Hare; J Robin Fulton; Martyn P Coles

doi:10.1039/d4cc02594f

Mixing and matching N, N- and N, O-chelates in anionic Mg(I) compounds: synthesis and reactivity with RNCNR and CO

Chem Commun (Camb). 2024 Jul 9;60(56):7204-7207. doi: 10.1039/d4cc02594f.

Authors

Andrea O'Reilly¹, Matthew D Haynes², Zoë R Turner², Claire L McMullin³, Sjoerd Harder⁴, Dermot O'Hare², J Robin Fulton¹, Martyn P Coles¹

Affiliations

¹ School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington 6012, New Zealand. [email protected].
² Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, UK. [email protected].
³ Department of Chemistry, University of Bath, Bath, BA2 7AY, UK. [email protected].
⁴ Inorganic and Organometallic Chemistry, Friedrich-Alexander-Universität, Erlangen-Nürnberg, Egerlandstraße 1, 91058 Erlangen, Germany.

PMID: 38910507
DOI: 10.1039/d4cc02594f

Abstract

Reduction of [Mg(NON)]₂ ([NON]^2- = [O(SiMe₂NDipp)₂]^2-, Dipp = 2,6-iPr₂C₆H₃) affords Mg(I) species containing NON- and NNO-ligands ([NNO]^2- = [N(Dipp)SiMe₂N(Dipp)SiMe₂O]^2-). The products of reactions with iPrNCNiPr and CO are consistent with the presence of reducing Mg(I) centres. Extraction with THF affords [K(THF)₂]₂[(NNO)Mg-Mg(NNO)] with a structurally characterised Mg-Mg bond that was examined using density functional theory.