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Lithium was electrochemically inserted from a Li + ion containing ionic liquid into graphite or tin to observe lithium isotope effects that accompanied the insertion. While no preferential uptake of the lithium isotopes was detected with graphite, the lighter isotope, 6 Li, was preferentially fractionated into tin with the single-stage lithium isotope separation factors, S, ranging...
Vapor phase 2nd virial coefficient isotope effects (VCIE's) are interpreted. A useful correlation is developed between -Delta(Beta-bo)/(Beta-bo) = (-VCIE) and the reference condensed phase reduced isotopic partition function ratio [ln(fc/fg)]*. B is the second virial coefficient, bo = 2pi sigma3/3, sigma is the Lennard-Jones size parameter, and Delta is an isotopic difference, light-heavy. [ln(fc/fg)]*...
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