Abstract
FTIR spectra of aqueous solutions of lithium (1 M), sodium (0.04, 0.2, and 1 M), and potassium (1 M) thiocyanate in their glassy states at 83 K, and of 1 M sodium thiocyanate in supercooled solution from 298 to 230 K, are reported from 1950 to 2200 cm -1 . In the CN stretching band region of the glassy solution derivative spectra, up to six discrete bands are observed. The band at ≃2050 cm -1 is assigned to mainly «free» SCN - . Bands at 2071, 2068, and 2067 cm - are assigned contact ion pairs Li + NCS - , Na + NCS - , and K + NCS -
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