[(VIVO)2MII5] (M = Ni, Co) Anderson wheels

Hector W. L. Fraser; Emily H. Payne; Arup Sarkar; Lucinda R. B. Wilson; Dmitri Mitcov; Gary S. Nichol; Gopalan Rajaraman; Stergios Piligkos; Euan K. Brechin

doi:10.1039/D1DT01710A

[(V^IVO)₂M ^II₅] (M = Ni, Co) Anderson wheels†

Hector W. L. Fraser,

‡^a Emily H. Payne,

‡^a Arup Sarkar,

^b Lucinda R. B. Wilson,^a Dmitri Mitcov,^c Gary S. Nichol,

^a Gopalan Rajaraman,

*^b Stergios Piligkos

*^c and Euan K. Brechin

*^a

Author affiliations

* Corresponding authors

^a EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ Scotland, UK
E-mail: E.Brechin@ed.ac.uk

^b Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
E-mail: rajaraman@chem.iitb.ac.in

^c Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
E-mail: piligkos@chem.ku.dk

Abstract

Heterometallic Anderson wheels of formula [(V^IVO)₂M^II₅(hmp)₁₀Cl₂](ClO₄)₂·2MeOH (M = Ni, 1; Co, 2) have been synthesised from the solvothermal reaction of M(ClO₄)₂·6H₂O and VCl₃ with hmpH (2-(hydroxymethyl)pyridine). The metallic skeleton describes a centred hexagon, with the two vanadyl ions sitting on opposing sides of the outer ring. Magnetic susceptibility and magnetisation measurements indicate the presence of both ferromagnetic and antiferromagnetic exchange interactions. Theoretical calculations based on density functional methods reproduce both the sign and strength of the exchange interactions found experimentally, and rationalise the parameters extracted.

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Article information

DOI: https://doi.org/10.1039/D1DT01710A
Article type: Paper
Submitted: 26 May 2021
Accepted: 02 Jul 2021
First published: 02 Jul 2021
This article is Open Access

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Dalton Trans., 2021,50, 12495-12501

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[(V^IVO)₂M^II₅] (M = Ni, Co) Anderson wheels

H. W. L. Fraser, E. H. Payne, A. Sarkar, L. R. B. Wilson, D. Mitcov, G. S. Nichol, G. Rajaraman, S. Piligkos and E. K. Brechin, Dalton Trans., 2021, 50, 12495 DOI: 10.1039/D1DT01710A

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