The Mössbauer spectra of hydroxycarbonate green rusts
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AbstractMössbauer spectra of Fe2+Fe3+ and Fe2+Al hydroxycarbonates taken in the paramagnetic state were fitted using two Fe2+ and Fe3+ doublets each. These spectra can be interpreted in terms of an ordered cation arrangement in the pyroaurite-type structure. The inner Fe2+ doublet seems to be the outcome of excess Fe3+ in the samples studied. The outer Fe2+ doublet (quadrupole splitting ∼2·8 mm s−1, FWHM = 0·26 mm s−1) is relatively well-defined and can, together with the fact that this doublet disappears on oxidation, possibly serve to identify these compounds in natural systems.
1971 ◽
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pp. 1191-1195
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1994 ◽
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1967 ◽
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1973 ◽
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2000 ◽
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1970 ◽
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1968 ◽
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pp. 390-391
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1973 ◽
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pp. 1697-1703
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