Abstract
Mössbauer spectra of green rust 2 run under vacuum from 78 K to 460 K, display a gradual change in the abundances of two out of three ferrous sites, with the ferric sites due to electronic exchange. Further oxidation in atmospheric conditions gives spectra displaying that the two first Fe2+ ions become oxidized to the ferric state, but that the last Fe2+ site remain unoxidized: thus, a ferrous sulphate layer in the structure of green rust 2 is left unchanged.
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Olowe, A.A., Génin, J.M.R. & Bauer, P. Mössbauer effect evidence of a ferrous sulphate layer in the structure of green rust 2 and its atmospheric oxidation. Hyperfine Interact 46, 437–443 (1989). https://doi.org/10.1007/BF02398228
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DOI: https://doi.org/10.1007/BF02398228