Large Zero‐Field Splittings of the Ground Spin State Arising from Antisymmetric Exchange Effects in Heterometallic Triangles1. (15th April 2014)

• Record Type: Journal Article
• Authors: Magee, Samantha A.; Sproules, Stephen; Barra, Anne‐Laure; Timco, Grigore A.; Chilton, Nicholas F.; Collison, David; Winpenny, Richard E. P.; McInnes, Eric J. L.
• Is Part Of: Angewandte Chemie. Volume 126:Number 21(2014)
• Page Start: 5414
• Page End: 5417
• Publication Date: 2014-04-15
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201400655
• Languages: English
• ISSNs: 0044-8249

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>[Ru₂Mn(O)(O₂C<italic>t</italic>Bu)₆(py)₃] has an <italic>S</italic>=⁵/₂ ground state with a very large zero‐field splitting (ZFS) of <italic>D</italic>=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 (<italic>D</italic> &lt;0.2 cm⁻¹), as shown from the {Fe₂Mn} analogue, but can be modeled by antisymmetric exchange effects.</p> </abstract>