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Novel motifs for magnetic exchange interactions as exemplified in one dimensional magnets based on the FeCl3-α-di-imine system: Nuclear gamma resonance evidence of slow paramagnetic relaxation and 3D-ordering

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Abstract

The extremes of single ion slow paramagnetic relaxation and cooperative 3D-antiferromagnetic order are exemplified in a series of structurally characterized complexes based on the anhydrous FeCl3-α-di-imine system. “Soft” Cl−Cl contacts, C−C (π-π) and hydrogen bonding interactions are found to lead to surprisingly strong magnetic exchange among five and six coordinate high-spin iron III monomers. The latter form the building blocks of novel “double chain” polymer magnets held together via the preceding “weak” interactions.

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References

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Authors and Affiliations

  1. Department of Chemistry, Northeastern University, 02115, Boston, MA, USA

    W. M. Reiff, E. H. Witten, J. Takacs & J. H. Zhang

  2. CR&D, E.I. du Pont de Nemours & Co., 19880, Wilmington, DE, USA

    C. C. Torardi

Authors
  1. W. M. Reiff
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  2. E. H. Witten
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  3. J. Takacs
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  4. J. H. Zhang
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  5. C. C. Torardi
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Reiff, W.M., Witten, E.H., Takacs, J. et al. Novel motifs for magnetic exchange interactions as exemplified in one dimensional magnets based on the FeCl3-α-di-imine system: Nuclear gamma resonance evidence of slow paramagnetic relaxation and 3D-ordering. Hyperfine Interact 56, 1723–1728 (1990). https://doi.org/10.1007/BF02405502

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  • DOI: https://doi.org/10.1007/BF02405502

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