Related Experiment Video
Updated: May 12, 2026

Raman and IR Spectroelectrochemical Methods as Tools to Analyze Conjugated Organic Compounds
Published on: October 12, 2018
An investigation of solute-solvent interactions in binary liquid mixtures of 3'-methoxyacetophenone: using Raman
1Department of Laser Studies, School of Physics, Madurai Kamaraj University, Madurai 625 021, India.
Abstract:
Raman spectral measurements have been carried out for neat 3'-methoxy acetophenone (3'-MAP) and binary liquid mixtures of 3'-MAP in three solvents of different polarity. Also Density Functional Theory (DFT) geometry optimization and vibrational wavenumber calculation have been performed on monomer and dimer structures of 3'-MAP to analyze the experimentally observed Raman spectrum. Mulliken charge analysis has also been made on optimized geometries of 3'-MAP with solvents. The changes associated with the observed peak position, intensity and linewidth in the carbonyl stretching mode of 3'-MAP are explained as a consequence of intermolecular interactions between solute-solute and solute-solvent molecules. This analysis reports that the solute-solvent interaction is dominant in the case of binary liquid mixtures of 3'-MAP with ethanol compared to DMF and benzene.
More Related Videos
Related Concept Videos
Chemical Shift: Internal References and Solvent Effects
The internal reference compound generally used in NMR spectroscopy is tetramethylsilane (TMS). TMS is preferred because it is chemically inert, soluble in NMR solvents, and easily removable. Also, the highly shielded methyl protons in TMS yield an intense...
Spectroscopy of Carboxylic Acid Derivatives
In the...
Solvents
A...
Raman Spectroscopy: Overview
However, a small fraction of the scattered light exhibits a frequency shift due to the exchange of energy between the incident photons and the...
Ideal Solutions
Chemical and Solubility Equilibria

