Lanthanide thermodynamic predictions |
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| Authors: | Steven Bratsch Herbert B Silber |
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| Institution: | Division of Earth and Physical Sciences, The University of Texas at San Antonio (UTSA), San Antonio, TX 78285, U.S.A. |
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| Abstract: | For the plus-two and plus-three lanthanide ions, ΔHf is inversely related to the sums of the ionic radii by ΔH°f = Qn + A/(rLn3++ rxn?) + B. This equation reproduces the known values for the plus-three oxides and the halides, and predicts the absolute hydration energies of the aqueous lanthanide(III) ions. The model is also used to calculate ΔHf of the lanthanide(II) oxides and fluorides. Based upon the enthalpies of disproportionation, EuO, YbO, SmF2, EuF2 and YbF2 are predicted to be stable. |
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| Keywords: | Author to whom correspondence should be addressed |
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