Issue 85, 2021

Self-assembly of a trigonal bipyramidal architecture with stabilisation of iron in three spin states

Abstract

Self-assembly and characterisation of a supramolecular trigonal bipyramidal iron cage containing an [FeIII2-F)6(FeII)3]3+ star motif at its core is reported. The complex can be formed in a one step reaction using an heterotopic ligand that supports site-specific incorporation of iron in three distinct electronic configurations: low-spin FeII, high-spin FeII and high-spin FeIII, with iron(II) tetrafluoroborate as the source of the bridging fluorides. Formation of a μ2-F bridged mixed-valence FeII–FeIII star is unprecedented. The peripheral high-spin FeII centres of the mixed-valence tetranuclear star incorporated in the iron cage are highly anisotropic and engage in F-mediated antiferromagnetic exchange with the central FeIII ion.

Graphical abstract: Self-assembly of a trigonal bipyramidal architecture with stabilisation of iron in three spin states

Supplementary files

Article information

Article type
Communication
Submitted
11 Aug 2021
Accepted
16 Aug 2021
First published
11 Oct 2021
This article is Open Access
Creative Commons BY license

Chem. Commun., 2021,57, 11252-11255

Self-assembly of a trigonal bipyramidal architecture with stabilisation of iron in three spin states

L. L. K. Taylor, I. J. Vitorica-Yrezabal, I. Borilović, F. Tuna and I. A. Riddell, Chem. Commun., 2021, 57, 11252 DOI: 10.1039/D1CC04413C

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements