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American Chemical Society, Journal of the American Chemical Society, 45(137), p. 14406-14422, 2015

DOI: 10.1021/jacs.5b09378

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Cyanide Single-Molecule Magnets Exhibiting Solvent Dependent Reversible “On” and “Off” Exchange Bias Behavior

Journal article published in 2015 by Dawid Pinkowicz, Heather I. Southerland, Carolina Avendaño, Andrey Prosvirin, Codi Sanders, Wolfgang Wernsdorfer, Kasper S. Pedersen ORCID, Jan Dreiser, Rodolphe Clérac, Joscha Nehrkorn, Giovanna G. Simeoni, Alexander Schnegg, Karsten Holldack, Kim R. Dunbar
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This paper is available in a repository.

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Abstract

The syntheses, structures, and magnetic properties of four new complex salts, (PPN){[MnIII(salphen)(MeOH)]2[MIII(CN)6]}·7MeOH (Mn2M·7MeOH) (M = Fe, Ru, Os and Co; PPN+ = bis(triphenylphosphoranylidene)ammonium cation; H2salphen = N,N′-bis(salicylidene)-1,2-diaminobenzene), and a mixed metal Co/Os analogue (PPN){[MnIII(salphen)(MeOH)]2[CoIII0.92OsIII0.08(CN)6]}·7MeOH were undertaken. It was found that all compounds exhibitswitchable single-molecule magnet (SMM) and exchange-bias behavior depending on the interstitial methanol content. The pristine (PPN)-{[Mn(salphen)(MeOH)]2[Os(CN)6]}·7MeOH (Mn2Os·7MeOH) behaves as an SMM with an effective barrier for the magnetization reversal,...