Vibrational Study and Force Field of the Citric Acid Dimer Based on the SQM Methodology

<table>Comparison between (a) the calculated Raman spectrum from B3LYP/6-31G* level for the monomer, (b) the calculated Raman spectrum obtained from B3LYP/6-31G* level using average frequencies and intensities for both monomer and dimer species and (c) the experimental Raman spectrum in solid state.</table>

Advances in Physical Chemistry

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Figure 3

Figure 3: Vibrational Study and Force Field of the Citric Acid Dimer Based on the SQM Methodology 