Communication

A Symmetry-Breaking Spin-State Transition in Iron(III)†

  1. Dr. Michael Griffin1,
  2. Stephen Shakespeare1,
  3. Dr. Helena J. Shepherd2,7,
  4. Dr. Charles J. Harding4,
  5. Dr. Jean-François Létard3,
  6. Dr. Cédric Desplanches3,
  7. Dr. Andrés E. Goeta2,
  8. Prof. Judith A. K. Howard2,
  9. Prof. Dr. Annie K. Powell5,
  10. Dr. Valeriu Mereacre5,
  11. Prof. Dr. Yann Garcia6,
  12. Dr. Anil D. Naik6,
  13. Dr. Helge Müller-Bunz1,*,
  14. Dr. Grace G. Morgan1,*

Article first published online: 12 NOV 2010

DOI: 10.1002/anie.201005545

Issue

Angewandte Chemie International Edition

Angewandte Chemie International Edition

Special Issue: Women in Chemistry

Volume 50, Issue 4, pages 896–900, January 24, 2011

Additional Information

How to Cite

Griffin, M., Shakespeare, S., Shepherd, H. J., Harding, C. J., Létard, J.-F., Desplanches, C., Goeta, A. E., Howard, J. A. K., Powell, A. K., Mereacre, V., Garcia, Y., Naik, A. D., Müller-Bunz, H. and Morgan, G. G. (2011), A Symmetry-Breaking Spin-State Transition in Iron(III). Angew. Chem. Int. Ed., 50: 896–900. doi: 10.1002/anie.201005545

Author Information

  1. 1

    The SFI-Strategic Research Cluster in Solar Energy Conversion, Centre for Synthesis and Chemical Biology, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4 (Ireland), Fax: (+353) 1-716-2127

  2. 2

    Department of Chemistry, University of Durham (UK)

  3. 3

    CNRS, Université de Bordeaux, ICMCB, Pessac (France)

  4. 4

    Department of Chemistry, The Open University, Walton Hall (UK)

  5. 5

    Institut für Anorganische Chemie, Karlsruhe Institut für Technologie (KIT) (Germany)

  6. 6

    Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain (Belgium)

  7. 7

    Present address: CNRS, Laboratoire de Chimie de Coordination (LCC), Toulouse (France)

*The SFI-Strategic Research Cluster in Solar Energy Conversion, Centre for Synthesis and Chemical Biology, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4 (Ireland), Fax: (+353) 1-716-2127

  1. †

    The authors thank Dr. Ivana R. Evans at the University of Durham for assistance with refining the unit cell parameters of the powder diffraction data and Prof. Sally Brooker and the University of Otago for funding and hosting a sabbatical visit (to G.G.M.) during manuscript preparation. Generous financial support from the Irish Research Council for Science, Technology and Engineering (IRCSET) and University College Dublin is also gratefully acknowledged, as is financial support from IAP-VI (P6/17) INANOMAT, the Fonds National de la Recherche Scientifique (FRFC 2.4508.08) and from a Concerted Research Action of the “Communauté Française de Belgique” allotted by the Académie Universitaire Louvain.

Publication History

  1. Issue published online: 19 JAN 2011
  2. Article first published online: 12 NOV 2010
  3. Manuscript Received: 4 SEP 2010

Funded by

  • Irish Research Council for Science, Technology and Engineering (IRCSET)
  • University College Dublin
  • Fonds National de la Recherche Scientifique. Grant Number: FRFC 2.4508.08
  • Concerted Research Action of the “Communauté Française de Belgique” allotted by the Académie Universitaire Louvain

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Keywords:

  • iron;
  • magnetism;
  • phase transitions;
  • spin crossover;
  • symmetry breaking
Thumbnail image of graphical abstract

Stepping up: A two-step magnetic spin transition with accompanying structural phase transitions is reported for the first time for FeIII. The transitions are observed at 187 K and 90 K on cooling with a hysteretic transition recorded upon heating during the first crossover at 106 K. The intermediate phase persists over 97 K and contains an unprecedented [HS-HS-LS] motif with tripling of the unit cell.

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