Abstract
Some years ago I. V. Kreitus measured changes in the optical characteristics of pulse radiolytically generated solvated electrons in solutions of LiCl in H2O and D2O over the LiCl concentration range 0−14.06 M (J. Phys. Chem. 1985, 89, 1987). With increasing LiCl concentration he observed a nonuniform blue-shift of the position of the esolv- absorption maximum and a similar discontinuous increase of the half-width of the absorption band. More rapid changes were observed just in those concentration regions which correspond to the stoichiometric mixtures such as LiCl·6H2O and LiCl·4H2O, respectively. Kreitus asserted that this effect is related to the microstructure of the solutions produced by Li+. He concluded finally that the high sensitivity of the esolv- absorption spectrum to slight microstructural changes in the medium could be used in future as a precise method for investigation of the solution structure. These experimental results and especially their interpretation have far reaching consequences. ...
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