Group 11 m-terphenyl complexes featuring metallophilic interactions

Liu, Yu, Taylor, Laurence J., Argent, Stephen P., McMaster, Jonathan and Kays, Deborah L. ORCID: https://orcid.org/0000-0002-4616-6001 2021. Group 11 m-terphenyl complexes featuring metallophilic interactions. Inorganic Chemistry 60 (14) , pp. 10114-10123. 10.1021/acs.inorgchem.0c03623

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Abstract

A series of group 11 m-terphenyl complexes have been synthesized via a metathesis reaction from the iron(II) complexes (2,6-Mes2C6H3)2Fe and (2,6-Xyl2C6H3)2Fe (Mes = 2,4,6-Me3C6H2; Xyl = 2,6-Me2C6H3). [2,6-Mes2C6H3M]2 (1, M = Cu; 2, M = Ag; 6, M = Au) and [2,6-Xyl2C6H3M]2 (3, M = Cu; 4, M = Ag) are dimeric in the solid state, although different geometries are observed depending on the ligand. These complexes feature short metal–metal distances in the expected range for metallophilic interactions. While 1–4 are readily isolated using this metathetical route, the gold complex 6 is unstable in solution at ambient temperatures and has only been obtained in low yield from the decomposition of (2,6-Mes2C6H3)Au·SMe2 (5). NMR spectroscopic measurements, including diffusion-ordered spectroscopy, suggest that 1–4 remain dimeric in a benzene-d6 solution. The metal–metal interactions have been examined computationally using the Quantum Theory of Atoms in Molecules and by an energy decomposition analysis employing natural orbitals for chemical valence.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry
Publisher:	American Chemical Society
ISSN:	0020-1669
Date of First Compliant Deposit:	7 August 2024
Date of Acceptance:	1 July 2021
Last Modified:	07 Aug 2024 09:00
URI:	https://orca.cardiff.ac.uk/id/eprint/170317

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