Abstract
The organometallic complexes C5H5 Fe(I) C6(C2H5)6 and C5(CH3)5 Fe(I)C6 H(C2H5)5 have been studied by Mössbauer spectroscopy. Hyperfine data are typical for 19e− systems with one electron on the e *1 orbital. The thermal variation of the quadrupole splittings indicates vibronic reduction of the spin-orbit constant, in agreement with previous analyses of similar 19e− systems. The quadrupole splitting and recoil-free fraction data give evidence for phase transitions, which are discussed with respect to cooperative Jahn-Teller distortion and hindered rotations of the ethyl groups.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
D. Astruc, J.R. Hamon, G. Althoff, E. Roman, P. Batail, P. Michaud, J.P. Mariot, F. Varret and D. Cozak, J. Amer. Chem. Soc. 101(1979)5445.
J.R. Hamon, D. Astruc and P. Michaud, J. Amer. Chem. Soc. 103(1981)758.
J.P. Hariot, F. Varret, P. Michaud, D. Astruc, J.R. Hamon, G. Althoff and P. Batail, J. de Phys. 41(1980)C1–319.
P. Michaud, J.P. Mariot, F. Varret and D. Astruc, J. Chem. Soc. Chem. Commun. (1982) 1383.
J.P. Mariot, P. Michaud, S. Lauer, D. Astruc, A. Trautwein and F. Varret, J. de Phys. 44(1983)1377.
J.P. Mariot, Thèse de Doctorat d’Etat, Le Mans (1984).
J.P. Mariot, J. Guillin, F. Varret, S. Lauer and A. Trautwein, Hyp. Int. 30(1986)221.
M.V. Rajasekharan, S. Giezynski, J.H. Ammeter, N. Oswald, P. Michaud, J.R. Hamon and D. Astruc, J. Amer. Chem. Soc. 104(1982)2400.
J.R. Hamon, J.Y. Saillard, A. Le Beuze, M.J. McGlinchey and D. Astruc, J. Amer. Chem. Soc. 104(1982)7549.
J.R. Hamon, Thèse de Doctorat d’Etat, Rennes (1982).
D. Astruc, Tetrahedron Report No. 157, Tetrahedron 39(1983)4027.
J.R. Hamon and D. Astruc, to be submitted for publication.
D. Astruc, J.R. Hamon, M. Lacoste, M.H. Desbois, A. Madonik and E. Roman, in:Organometallic Synthesis, Vol. 4, ed. R. Baking, in press.
J. Teillet and F. Varret, MOSFIT, unpublished program.
C.I.R.C.E., Université Paris-Sud, F-91406 Orsay Cedex, France.
N.N. Greenwood and T.C. Gibb,Mössbauer Spectroscopy, (Chapman and Hall, London, 1971), p. 11.
J.C. Gressier, G. Levesque, H. Patin and F. Varret, Macromolecules 16(1983)1577.
J.H. Ammeter and J.D. Swalen, J. Chem. Phys. 57(1972)678.
F.S. Ham, J. de Phys. (1974)C6–121.
J.P. Mariot, P. Michaud, S. Lauer, D. Astruc, A.X. Trautwein and F. Varret, Hyp. Int. 14(1983)333; Errata, Hyp. Int. 20(1984)349.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Varret, F., Mariot, J.P., Hamon, J.R. et al. Further examples of 19e− sandwiches of Fe(I) studied by Mössbauer spectroscopy: Per-ethylated benzene complexes. Hyperfine Interact 39, 67–80 (1988). https://doi.org/10.1007/BF02394647
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02394647