Applications of the Mössbauer effect to silicate mineralogy--I. Iron silicates of known crystal structure

Details Applications of the Mössbauer effect to silicate mineralogy--I. Iron silicates of known crystal structure Applications of the Mössbauer effect to silicate mineralogy--I. Iron silicates of known crystal structure

Nov 1967

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1967gecoa..31.2219b&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 31, Issue 11, pp.2219-2246

Computer Science

59

Scientific paper

Mössbauer parameters are reported for a number of silicates of known crystal struc- ture, containing high-spin iron in a range of co-ordination symmetries. The spectra are fitted by computer to Lorentzian line shapes and the component peaks in each spectrum are assigned to the various positions in the particular silicate structure. The results show that the chemical shift and the quadrupole splitting are sensitive not only to the oxidation state and electronic configuration, but also to the co-ordination number and site distortion. An attempt is made to relate the changes in quadrupole splitting to structural features for the six-co-ordinate Fe 2+ species. Line broadening in such iron compounds is discussed.

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