Abstract
NaK alloy in contact with 15-crown-5 hexane solution became potassium sodide K +(15-crown-5) 2Na −. After the evaporation of hexane the crystalline solid product was analyzed by X-ray diffraction and the lattice parameters were calculated. The potassium sodide thus obtained could be easily dissolved in tetrahydrofuran. A deep blue solution containing sodium anions and complexed potassium cations was formed with a very low concentration of solvated electrons, i.e. of the order of 10 −7 M. Potassium anions were not detected in this case. A new crystalline potassium sodide K +(DCH-24-crown-8) 2Na − was obtained using NaK alloy and dicyclohexano-24-crown-8 hexane solution.
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