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  Importance of the Anisotropic Exchange Interaction for the Magnetic Anisotropy of Polymetallic Systems

Piligkos, S., Bill, E., Collison, D., McInnes, E. J. L., Timco, G. A., Weihe, H., et al. (2007). Importance of the Anisotropic Exchange Interaction for the Magnetic Anisotropy of Polymetallic Systems. Journal of the American Chemical Society, 129(4), 760-761. doi:10.1021/ja068017q.

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 Creators:
Piligkos, Stergios1, Author
Bill, Eckhard2, Author              
Collison, David3, Author
McInnes, Eric J. L.3, Author
Timco, Grigore A.3, Author
Weihe, Høgni1, Author
Winpenny, Richard E. P.3, Author
Neese, Frank2, Author              
Affiliations:
1Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100, Denmark, ou_persistent22              
2Research Department Wieghardt, Max Planck Institute for Bioinorganic Chemistry, Max Planck Society, ou_3023881              
3School of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom, ou_persistent22              

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 Abstract: A prerequisite to understand and subsequently to allow applications of the magnetic properties of polymetallic exchange coupled systems is a detailed insight into the magnetic properties of their elementary building blocks and the interaction between them. Such an understanding passes through the quantification of the relative contributions of single-ion and exchange terms to the overall magnetic properties of the system. In the general case, the quantification of these two kinds of contributions is possible when numerous spin-states are experimentally observed since single-ion and exchange terms project differently on the ground and various excited spin-states of an exchange coupled system. We present here highly resolved multifrequency (X-, K-, and Q-band) CW-EPR spectra obtained on a heterooctametallic ring [Me2NH2][Cr(III)7Cd(II)F8((CH3)3CCOO)16] (1). The spectra of 1 provide a rare example of a polymetallic system where detailed information on the spin-Hamiltonian parameters of excited spin-states is experimentally observed. Analysis of these spectra allowed the direct quantification of the contributions of single-ion and exchange anisotropy terms to the magnetic properties of the system.

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Language(s): eng - English
 Dates: 2006-11-092007-01-01
 Publication Status: Published in print
 Pages: 2
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1021/ja068017q
 Degree: -

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Title: Journal of the American Chemical Society
  Other : JACS
  Abbreviation : J. Am. Chem. Soc.
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: 129 (4) Sequence Number: - Start / End Page: 760 - 761 Identifier: ISSN: 0002-7863
CoNE: https://pure.mpg.de/cone/journals/resource/954925376870