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Mössbauer study of a novel binuclear Fe(II/III) delocalized-valence compound

  • Part I Chemical Structure and Bonding
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Abstract

In this paper, we briefly summarize the main conclusions of the Mössbauer analysis of [L2Fe2(μ-OH)3] (ClO4)2·2CH3OH·2H2O with L=N,N',N"-trimethyl-1,4,7-triazacyclononane, a novel dimeric iron compound, which possesses a central exchange-coupled delocalized-valence Fe(II/III) unit. The complete delocalization of the excess electron in the dimeric iron center is concluded from the indistinguishability of the two iron sites in Mössbauer spectroscopy. The magnetic Mössbauer spectra imply a system spinS t=9/2 for the dimer in its ground state. The values for hyperfine and spin-Hamiltonian parameters, obtained from simulations of the Mössbauer spectra, are δ=0.74 mms−1, ΔE Q=−2.14 mms−1,A =−10.6 T,A =−13.5 T andD=1.8 cm−1. The system spinS t=9/2 is interpreted to be a consequence of double-exchange coupling.

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Réferences

  1. K.Y. Wong and P.N. Schatz, Prog. Inorg. Chem. 28 (1981) 369.

    Article  Google Scholar 

  2. C. Zener, Phys. Rev. 82 (1951) 403.

    Article  ADS  Google Scholar 

  3. G.H. Jonker and J.H. van Santen, Physica 16 (1950) 337; ibid. 16 (1950) 599.

    Article  ADS  Google Scholar 

  4. P.W. Anderson and H. Hasegawa, Phys. Rev. 100 (1955) 675.

    Article  ADS  Google Scholar 

  5. S. Drüeke, P. Chaudhuri, K. Pohl, K. Wieghardt, X.-Q. Ding, E. Bill, A. Sawaryn, A.X. Trautwein, H. Winkler and S.J. Gurman, J. Chem. Soc., Chem. Comm. 59 (1989).

  6. P. Gütlich, R. Link and A.X. Trautwein, in:Mössbauer Spectroscopy in Transition Metal Chemistry (Springer, Heidelberg, 1978).

    Book  Google Scholar 

  7. N.N. Greenwood and T.C. Gibb, in:Mössbauer Spectroscopy (Chapman & Hall, London, 1971).

    Book  Google Scholar 

  8. X.-Q. Ding, E.L. Bominaar, E. Bill, H. Winkler, A.X. Trautwein, S. Drüeke, P. Chaudhuri and K. Wieghardt, J. Chem. Phys., in print.

  9. L. Noodleman and E.J. Baerends, J. Am. Chem. Soc. 106 (1984) 2316.

    Article  Google Scholar 

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Ding, X.Q., Bominaar, E.L., Bill, E. et al. Mössbauer study of a novel binuclear Fe(II/III) delocalized-valence compound. Hyperfine Interact 53, 311–315 (1990). https://doi.org/10.1007/BF02101058

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