Abstract
Infrared spectra of mixtures of water and deuteroacetonitrile containing the Cr 3+ cation have been studied as a function of concentration, time and temperature. The CN stretching vibration of CD 3CN molecules has been used as a probe of the structural environments. The CN band in the spectra of the solutions is a superposition of four subbands, which may be attributed to CD 3CN bound in the first, second, and third solvation shells of the cation and to non-bound CD 3CN. The character of changes of the integral intensities of the subbands with time for various H 2O:Cr 3+ molar ratios are explained by suggesting mechanisms of molecular replacement within the solvation shells of Cr 3+.
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Schedule a callMore From: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
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