scholarly journals Evidence for Mössbauer spectroscopy for different forms of iron core in Pseudomonas aeruginosa bacterial ferritin

1990 ◽  
Vol 272 (1) ◽  
pp. 263-264 ◽  
Author(s):  
N M K Reid ◽  
D P E Dickson ◽  
C Greenwood ◽  
A Thompson ◽  
F H A Kadir ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Mössbauer Spectroscopy ◽  
Mossbauer Spectroscopy ◽  
Growth Conditions ◽  
Spectroscopic Studies ◽  
Iron Core ◽  
Whole Cells ◽  
Predominant Form ◽  
Bacterial Ferritin ◽  
Forms Of Iron

Mössbauer spectroscopic studies of whole cells of Pseudomonas aeruginosa, grown under different conditions, indicate that the predominant form of iron in the cells varies significantly. These differences are interpreted in terms of differences in the nature of the iron cores of the bacterial ferritin, which result from different growth conditions.

Identification of oxide impurity phases and distribution of structural iron in some diagenetic illitic clays as determined by Mössbauer spectroscopy

Clay Minerals ◽  
1988 ◽  
Vol 23 (3) ◽  
pp. 301-308 ◽  
Author(s):  
B. A. Goodman ◽  
P. H. Nadeau
Keyword(s):  
Mössbauer Spectroscopy ◽  
Iron Oxide ◽  
Mossbauer Spectroscopy ◽  
Oxide Phase ◽  
The Other ◽  
Mößbauer Spectroscopy ◽  
Impurity Phases ◽  
Oxide Impurity ◽  
Structural Iron ◽  
Forms Of Iron

AbstractSeven diagenetic illitie clays have been investigated by Mössbauer spectroscopy to characterize the forms of iron. Four specimens had measurable amounts of iron oxide impurity phases, accounting for up to ∼95% of the total Fe. Goethite, microcrystalline and probably aluminous, was identified as the oxide phase in three of these samples, the other containing hematite. This latter sample was also the only one which had tetrahedral Fe(III). Five of the samples contained measurable amounts of Fe(II), but the aluminosilicate Fe was present largely as 6-coordinated Fe(III) which had two distinctly different sets of parameters. These results are discussed in terms of the structural properties of illites.

Mössbauer Spectroscopic Studies of Monosubstituted Pentacyano Ferrate(II) Complexes, Na3[Fe(CN)5RNH2] · nH2O

1981 ◽  
Vol 36 (1) ◽  
pp. 59-61 ◽  
Author(s):  
A. N. Garg ◽  
P. N. Shukla
Keyword(s):  
Mössbauer Spectroscopy ◽  
Isomer Shift ◽  
Quadrupole Splitting ◽  
Electron Density ◽  
Mossbauer Spectroscopy ◽  
Spectroscopic Studies ◽  
Limited Range ◽  
Octahedral Geometry ◽  
Amino Groups ◽  
Mößbauer Spectroscopy

Abstract A series of compounds Na3[Fe(CN)5RNH2] · nH2O where R = -H, -CH3, -C2H5, n-C3H7, n-C4H9 and -CH2C6H5 and RNH2 = C5H5N have been studied by Mössbauer spectroscopy. Quadrupole splitting (⊿EQ) values vary in a limited range (0.68-0.80 mm/sec) indicating only small distortions in the octahedral geometry of the compounds with the substitution of various amino groups. Isomer shift (δ) values remain almost constant suggesting that s-electron density is not affected by substitution.

ELECTRON SPECTROMETER FOR MÖSSBAUER SPECTROSCOPY

1979 ◽  
Vol 40 (C2) ◽  
pp. C2-14-C2-16
Author(s):  
T. Toriyama ◽  
K. Saneyoshi ◽  
K. Hisatake
Keyword(s):  
Mössbauer Spectroscopy ◽  
Mossbauer Spectroscopy ◽  
Electron Spectrometer ◽  
Mößbauer Spectroscopy
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