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Large Zero‐Field Splittings of the Ground Spin State Arising from Antisymmetric Exchange Effects in Heterometallic Triangles

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2014-04-15

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Magee, Samantha A.
Sproules, Stephen
Barra, Anne‐Laure
Timco, Grigore A.
Chilton, Nicholas F.
Collison, David
Winpenny, Richard E. P.
McInnes, Eric J. L.

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Abstract

[Ru 2 Mn(O)(O 2 C t Bu) 6 (py) 3 ] has an S = 5 / 2 ground state with a very large zero‐field splitting (ZFS) of D =2.9 cm −1 as characterized by EPR spectroscopy at 4–330 GHz. This is far too large to be due to the Mn II ion ( D textless0.2 cm −1 ), as shown from the Fe 2 Mn analogue, but can be modeled by antisymmetric exchange effects.

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https://hdl.handle.net/1885/733799688

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ANU Research Publications

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Angewandte Chemie - International Edition

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10.1002/anie.201400655

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