A cyano bridged iron(III) linear chain with alternating Fe(CN)₆–Fe(cyclam) (cyclam = 1,4,8,11-tetraazacyclodecane) units and unexpected ferromagnetic behaviour

Abstract

The X-ray crystal structure and magnetic properties of a cyano-bridged iron(III) linear chain containing alternating iron sites and unexpected ferromagnetic behaviour, justified on the basis of the axial distortion from regular octahedral geometry of one of the iron(III) ions, are reported.

References

1. Magnetism: a Supramolecular Function, ed. O. Kahn, Kluwer Academic, NATO-ASI Series C-484, Dordrecht, 1996; Molecular Magnetism: from Molecular Assemblies to Devices, ed. E. Coronado, P. Delhaes, D. Gatteschi and J. S. Miller, Kluwer Academic, NATO-ASI Series E-321, Dordrecht, 1996.
2. Magnetic Molecular Materials, ed. D. Gatteschi, O. Kahn, J. S. Miller and F. Palacios, Kluwer Academic Publisher, NATO-ASI Series E-198, Dordrecht, 1991; O. Kahn, Molecular Magnetism, VCH, New York, 1993.
3. M. Verdaguer, Science, 1996, 272, 698; W. Entley and G. S. Girolami, Science, 1995, 268, 397; O. Kahn, Nature, 1995, 378, 667.
4. S. Ferlay, T. Mallah, R. Ouahes, P. Veillet and M. Verdaguer, Nature, 1995, 378, 701.
5. M. Ohba, N. Maruoono, E. Okawa, T. Enoki and J. M. Latour, J. Am. Chem. Soc., 1994, 116, 11566; M. Ohba, E. Okawa, T. Ito and A. Ohto, J. Chem. Soc., Chem. Commun., 1995, 1545; H. Miyasaka, N. Matsumoto, N. Re, E. Gallo and C. Floriani, Inorg. Chem., 1997, 36, 670; H. Miyasaka, N. Matsumoto, H. Okawa, N. Re, E. Gallo and C. Floriani, J. Am. Chem. Soc., 1996, 118, 981; H.-Z. Kou, D.-Z. Liao, P. Cheng, Z.-H. Jiang, S.-P. Yan, G. L. Wang, X.-K. Yao and H.-G. Wang, J. Chem. Soc., Dalton Trans., 1997, 1503.
6. M. Salah El Fallah, E. Rentschler, A. Caneschi, R. Sessoli and D. Gatteschi, Angew. Chem., Int. Ed. Engl., 1996, 35, 9047.
7. R. J. Parker, D. C. R. Hockless, B. Moubaraki, K. J. S. Murray and L. Spiccia, Chem. Commun., 1996, 2789; T. Mallah, C. Auberger, M. Verdaguer and P. Veillet, J. Chem. Soc., Chem. Commun., 1995, 61; A. Scuiller, T. Mallah, M. Verdaguer, A. Nivorozkhin, J. Tholence and P. Veillet, New J. Chem., 1996, 20, 1.
8. C. S. Hong, J. Kim, N. H. Hue and Y. Do, Inorg. Chem., 1996, 35, 5110.
9. G. A. Baker Jr., G. S. Rushbruke and H. E. Gilbert, Phys. Rev. A, 1964, 135, 1272.
10. M. Schwartz, W. E. Hatfield, M. D. Joesten, M. Hanack and A. Datz, Inorg. Chem., 1985, 24, 4198.