Issue 26, 2016

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

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

Supplementary files

Article information

Article type
Communication
Submitted
17 Dec 2015
Accepted
21 Feb 2016
First published
22 Feb 2016

Chem. Commun., 2016,52, 4772-4775

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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