Mössbauer spectra of mixed-valence dimeric iron clusters in charge-ordered crystals

1991 ◽  
Vol 150 (3) ◽  
pp. 295-309 ◽  
Author(s):  
A.V. Koryachenko ◽  
S.I. Klokishner ◽  
B.S. Tsukerblat
Keyword(s):  
Mössbauer Spectra ◽  
Mixed Valence ◽  
Iron Clusters ◽  
Mossbauer Spectra

Effect of pressure on resistivity and Mössbauer spectra of the mixed valence compound Sn2S3

1979 ◽  
Vol 70 (11) ◽  
pp. 4837-4842 ◽  
Author(s):  
G. Amthauer ◽  
J. Fenner ◽  
S. Hafner ◽  
W. B. Holzapfel ◽  
R. Keller
Keyword(s):  
Mössbauer Spectra ◽  
Mixed Valence ◽  
Effect Of Pressure ◽  
Mossbauer Spectra ◽  
Mixed Valence Compound

Magnetische und Mößbauer-spektroskopische Untersuchungen von zeolithischen Eisenkontakten/ Magnetic and Mössbauer Spectroscopic Studies of Iron-Clusters in Zeolites

1975 ◽  
Vol 30 (12) ◽  
pp. 1627-1632 ◽  
Author(s):  
F. Schmidt ◽  
W. Gunsser ◽  
A. Knappwost
Keyword(s):  
Magnetic Susceptibility ◽  
Temperature Dependence ◽  
Mössbauer Spectra ◽  
Bulk Material ◽  
Spectroscopic Studies ◽  
Ferrous Ions ◽  
Iron Clusters ◽  
Mossbauer Spectra

Abstract Iron clusters have been prepared within zeolite holes by reduction of zeolites containing ferrous ions. The diameter of these particles must therefore be smaller than 13 Å. They are super-paramagnetic and their Mössbauer spectra show no HFS, even at 4 K.The temperature dependence of the magnetic susceptibility of the unreduced zeolites obeys a Curie-Weiss law with peff = 4,54 μB and Θ = 105 K. The Weiss curves of the reduced samples lie distinctly below those of the bulk material.

57Fe-Mößbauer-Messungen an μ3-RP-verbrückten heterometallischen Clustern μ3-RP-(C5H5(CO)2Mn)Fe2(CO)6Ln (n = 0,1, 2; L - CO, R3X mit X = P, As, Sb und R = Ph, OPh, OMe) / 57Fe Mößbauer Spectra of //3-RP-Bridged Heterometallic Clusters μ3-RP-(C5H5(CO)2Mn)Fe(CO)6Ln (n = 0, 1, 2; L = CO, R3X with X = P, As, Sb and R = Ph, OPh, OMe)

1982 ◽  
Vol 37 (5) ◽  
pp. 610-613 ◽  
Author(s):  
Hartwig Schäfer-Stahl ◽  
Josef Schneider ◽  
Gottfried Huttner
Keyword(s):  
Room Temperature ◽  
Mössbauer Spectra ◽  
Heterometallic Clusters ◽  
Iron Clusters ◽  
Lattice Constants ◽  
57Fe Mössbauer ◽  
Mossbauer Spectra ◽  
Mössbauer Parameters

Room-temperature Mössbauer spectra are reported for μ3-RP-bridged heterometallic iron clusters of the type μ3-RP-(C5H5(CO)2Mn)Fe2(CO)6Ln. The Mössbauer parameters of these clusters show that the structures are in agreement with the lattice constants of low-spin hetero manganese-iron clusters

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