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Access to Heteroleptic Fluorido-Cyanido Complexes with a Large Magnetic Anisotropy by Fluoride Abstraction

Liu, JL and Pedersen, KS and Greer, SM and Oyarzabal, I and Mondal, A and Hill, S and Wilhelm, F and Rogalev, A and Tressaud, A and Durand, E and Long, JR and Clérac, R (2020) Access to Heteroleptic Fluorido-Cyanido Complexes with a Large Magnetic Anisotropy by Fluoride Abstraction. In: Angewandte Chemie - International Edition, 59 (26). 10306 -10310.

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Official URL: https://doi.org/10.1002/anie.201914934


Silicon-mediated fluoride abstraction is demonstrated as a means of generating the first fluorido-cyanido transition metal complexes. This new synthetic approach is exemplified by the synthesis and characterization of the heteroleptic complexes, trans-MIVF4(CN)22� (M=Re, Os), obtained from their homoleptic MIVF62� parents. As shown by combined high-field electron paramagnetic resonance spectroscopy and magnetization measurements, the partial substitution of fluoride by cyanide ligands leads to a marked increase in the magnetic anisotropy of trans-ReF4(CN)22� as compared to ReF62�, reflecting the severe departure from an ideal octahedral (Oh point group) ligand field. This methodology paves the way toward the realization of new heteroleptic transition metal complexes that may be used as highly anisotropic building-blocks for the design of high-performance molecule-based magnetic materials. © 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Item Type: Journal Article
Publication: Angewandte Chemie - International Edition
Publisher: Wiley-VCH Verlag
Additional Information: The copyright for this article belongs to Wiley-VCH Verlag
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 26 Jul 2021 09:21
Last Modified: 26 Jul 2021 09:21
URI: http://eprints.iisc.ac.in/id/eprint/65382

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