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Issue 26, 2016
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Structural anisotropy of cyanido-bridged {Co II9W V6} single-molecule magnets induced by bidentate ligands: towards the rational enhancement of an energy barrier

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Abstract

Pentadecanuclear {CoII9[WV(CN)8]6} clusters were combined with bidentate 2,2′-bipyridine N,N′-dioxide (2,2′-bpdo) ligands resulting in two distinct molecules, {Co9W6(2,2′-bpdo)7} (cluster A) and {Co9W6(2,2′-bpdo)6} (cluster B), capped by seven and six 2,2′-bpdo ligands, respectively. They crystallize within a single {Co9W6(2,2′-bpdo)7}·{Co9W6(2,2′-bpdo)6}·solvent (1) supramolecular network, and reveal single-molecule magnet behaviour with an enhanced energy barrier, a ΔE/kB of 30.0(8) K, which was tentatively ascribed to seven-capped axially deformed cluster A.

Graphical abstract: Structural anisotropy of cyanido-bridged {CoII9WV6} single-molecule magnets induced by bidentate ligands: towards the rational enhancement of an energy barrier

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Supplementary files

Article information


Submitted
17 Dec 2015
Accepted
21 Feb 2016
First published
22 Feb 2016

Chem. Commun., 2016,52, 4772-4775
Article type
Communication

Structural anisotropy of cyanido-bridged {CoII9WV6} single-molecule magnets induced by bidentate ligands: towards the rational enhancement of an energy barrier

S. Chorazy, M. Rams, A. Hoczek, B. Czarnecki, B. Sieklucka, S. Ohkoshi and R. Podgajny, Chem. Commun., 2016, 52, 4772
DOI: 10.1039/C5CC10371A

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