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.

Abstract

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.

Citation

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. https://doi.org/10.1016/j.ica.2016.12.029

• 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
• DOI: https://doi.org/10.1016/j.ica.2016.12.029
• Keywords: Magnesium; Iron; Metal-metal interactions; N ligands; Density functional calculations
• Public URL: https://nottingham-repository.worktribe.com/output/852073
• Publisher URL: http://www.sciencedirect.com/science/article/pii/S0020169316306934
• 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: https://doi.org/10.1016/j.ica.2016.12.029; Content Type: article; Copyright: © 2017 Elsevier B.V. All rights reserved.