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A monomeric, heterobimetallic complex with an unsupported Mg−Fe bond

Birchall, Christopher; Moxey, Graeme J.; McMaster, Jonathan; Blake, Alexander J.; Lewis, William; Kays, Deborah L.

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Christopher Birchall

Graeme J. Moxey

Alexander J. Blake

William Lewis

Professor of Inorganic Chemistry


The phosphinimine, trimethylsilyl-substituted BIPM ligand [BIPM = bis(iminophosphorano)methanide] has been used to stabilise CH(Ph2PNSiMe3)2MgFe(η5-C5H5)(CO)2 (1), which is a structurally authenticated complex exhibiting a direct, unsupported bond between an alkaline earth metal and a transition metal. The FTIR-measured carbonyl stretching frequencies for this complex suggest that there is a polarisation of charge from the transition metal fragment to the magnesium centre. The presence of a polar metal-metal bond in 1 is confirmed by DFT calculations, which suggest that the Mg−Fe bond is predominantly ionic in nature.


Birchall, C., Moxey, G. J., McMaster, J., Blake, A. J., Lewis, W., & Kays, D. L. (2017). A monomeric, heterobimetallic complex with an unsupported Mg−Fe bond. Inorganica Chimica Acta, 458, 97-100.

Journal Article Type Article
Acceptance Date Dec 16, 2016
Online Publication Date Dec 25, 2016
Publication Date Mar 24, 2017
Deposit Date Feb 27, 2017
Publicly Available Date Feb 27, 2017
Journal Inorganica Chimica Acta
Print ISSN 0020-1693
Electronic ISSN 0020-1693
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 458
Pages 97-100
Keywords Magnesium; Iron; Metal-metal interactions; N ligands; Density functional calculations
Public URL
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Additional Information This article is maintained by: Elsevier; Article Title: A monomeric, heterobimetallic complex with an unsupported Mg–Fe bond; Journal Title: Inorganica Chimica Acta; CrossRef DOI link to publisher maintained version:; Content Type: article; Copyright: © 2017 Elsevier B.V. All rights reserved.


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