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Original Research

IJCRR. 2012; 4(19): 31-36


Seethalakshmi K., Jasmine Vasantha Rani E., Padmavathy R., Radha N..

IR spectra find wide spread applications for the qualitative and quantitative analysis of compounds and this technique is also well employed in the field of research to understand the nature of inter atomic bonding. In the present study, FT-IR spectra are recorded for 1-butyl-3-methyl imidazolium chloride (bmim)cl- and its solution in polar-protic solvent in the wave number region from 4000cm-1 to 450cm-1. The spectra are used to assign various stretching and bending modes of vibrations of the sample and also to identify the various phases present in the sample. A comparative study is made between the observed frequencies of the pure solvent and the solution. From this evaluation, the shifts in frequencies are corroborated. These shifts in the solution are ascribed to strong solute-solvent interaction by specific bonding between NH2 and C=O of solvent and Cl- and +NCH3 group of the imidazolium chloride.

Key words: Ionic liquid, 1-Butyl-3-Methyl imidazolium Chloride, vibrational frequencies.

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