Abstract
Infrared and Raman spectroscopy techniques have been used to study the ionic interactions of strontium(II) and barium(II) with thiocyanate ion in liquid ammonia. A number of bands were observed in both n (CN) and n (CS) regions of infrared and Raman spectra and these were assigned to 1:1 contact ion pair, [M2+----NCS]+; band (B) to a triple-ion, SCN---- M2+----NCS; band (C) to solvent-shared ion pair, [(NH3)xM2+¬ NH3----NCS]+; band (D) to a ;free; thiocyanate anion SCN- and band (E) to an upper stage transition arising from the excitation of a linear species already in a vibrational level above the ground state. (Received September 28, 2001; revised April 10, 2002) Bull. Chem. Soc. Ethiop. 2002, 16(1), 65-72.
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