Crystal Field Splittings in Fe<SUP>2+</SUP> Tutton Salts from Mössbauer Studies

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  • Raj Deo
    Department of Physics, University of Roorkee
  • Chandra K.
    Department of Physics, University of Roorkee
  • Puri S. P.
    Department of Physics, University of Roorkee

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  • Crystal field splittings in Fe2+ tutton salts from Mossbauer studies

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Abstract

The Mössbauer spectra of Fe2+ Tutton salts, which form an isomorphous series of hydrated double sulphates having the general formula Fe(MSO4)2·6H2O, M=NH4+, K+, Rb+ and Cs+ have been studied over a temperature range from 77°–300°K. The data is analysed to assign characteristic temperatures of the t2g levels and find their splittings. It is concluded that the ground state wave function is singlet |xy> in all these cases. Furthermore the effect of varying electronegativity of M has negligible effect on isomer shift.

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