Tetranuclear vanadium(III) carboxylate chemistry, and a new example of a metal butterfly complex exhibiting spin frustration: structure and properties of [V4O2(O2CEt)7(bpy)2](ClO4)

Stephanie L. Castro; Ziming Sun; John C. Bollinger; David N. Hendrickson; George Christou

doi:10.1039/C39950002517

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Journal of the Chemical Society, Chemical Communications

Issue 24, 1995

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Tetranuclear vanadium(III) carboxylate chemistry, and a new example of a metal butterfly complex exhibiting spin frustration: structure and properties of [V₄O₂(O₂CEt)₇(bpy)₂](ClO₄)

Stephanie L. Castro , Ziming Sun , John C. Bollinger , David N. Hendrickson and George Christou

J. Chem. Soc., Chem. Commun., 1995, 2517-2518

DOI: 10.1039/C39950002517

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Abstract
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Treatment of [VCl₃(thf)₃](thf = tetrahydrofuran) with bpy (bpy = 2,2′-bipyridine) and NaO₂CEt in a 1 : 1 : 3 molar ratio in Me₂CO followed by addition of ClO₄^– allows isolation of [V₄O₂(O₂CEt)₇(bpy)₂](ClO₄)[4(ClO₄)], which contains a butterfly-like V₄ unit; variable-temperature magnetic susceptibility studies show 1 to possess both ferro- and antiferro-magnetic exchange interactions leading to spin-frustration effects and an S= 3 ground state.

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Stephanie L. Castro
Ziming Sun
John C. Bollinger
David N. Hendrickson
George Christou

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Journal of the Chemical Society, Chemical Communications

Tetranuclear vanadium(III) carboxylate chemistry, and a new example of a metal butterfly complex exhibiting spin frustration: structure and properties of [V₄O₂(O₂CEt)₇(bpy)₂](ClO₄)

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