Tri-, tetra- and octa-metallic vanadium(III) clusters from new, simple starting materials: interplay of exchange and anisotropy effects

Ian S. Tidmarsh; Luke J. Batchelor; Emma Scales; Rebecca H. Laye; Lorenzo Sorace; Andrea Caneschi; Jürgen Schnack; Eric J. L. McInnes

doi:10.1039/B911586B

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Dalton Transactions

Issue 43, 2009

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Tri-, tetra- and octa-metallic vanadium(III) clusters from new, simple starting materials: interplay of exchange and anisotropy effects

Ian S. Tidmarsh , Luke J. Batchelor , Emma Scales , Rebecca H. Laye , Lorenzo Sorace , Andrea Caneschi , Jürgen Schnack and Eric J. L. McInnes

Dalton Trans., 2009, 9402-9409

DOI: 10.1039/B911586B
Received 15 Jun 2009, Accepted 17 Aug 2009
First published on the web 04 Sep 2009

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Abstract
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Compounds
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The crystal structure of the monomeric vanadium(III) species mer-[V(bipy)Cl₃(MeCN)] (1; bipy = 2,2′-bipyridine) is reported. The solvothermal reaction of [V(bipy)Cl₃(MeCN)]with Na(O₂CPh) yields the T-shaped cluster [V₃(O)Cl₃(O₂CPh)₂(bipy)₂(OEt)₂], magnetic studies of which show strong intramolecular antiferromagnetic coupling giving a well isolated S = 1 ground state. Solvothermal treatment of 1 with triols yields a series of polymetallic clusters [V₄Cl₆(thme)₂(bipy)₃], [V₃Cl₄(Hcht)₂(bipy)₂]Cl and [V₈(OH)₂Cl₄(cht)₄(O₂CPh)₆(bipy)₂], structurally related to previously reported {M₄} centred triangles. Magnetic studies of this series reveal very weak intramolecular antiferromagnetic exchange and very strong local zero-field splitting effects.

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Articles By

Ian S. Tidmarsh
Luke J. Batchelor
Emma Scales
Rebecca H. Laye
Lorenzo Sorace
Andrea Caneschi
Jürgen Schnack
Eric J. L. McInnes

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Dalton Transactions

Tri-, tetra- and octa-metallic vanadium(III) clusters from new, simple starting materials: interplay of exchange and anisotropy effects

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