A comparative analysis of vibrational spectra for odorant classification
Fig 2
Classification of odorant compounds based on their infrared spectra.
Each spectrum is labeled according to the compound numbers listed in Tables I and II. The spectra are color-coded by group to enhance visual distinction. Group A: 6-Methylhept-5-en-2-one, Benzoic acid, 3-Methyl-2-pentanone, Benzaldehyde. Group B: (E,E)-α-farnesene, (E)-β-ocimene, linalool, (-)-β-Caryophyllene, (-)-α-Copaene, Caryophylladienol II, β-Bisabolene, (E)-α-Bergamotene, (E)-Geranyl geraniol, Eucalyptol, d-Limonene. Group C: Dimethyl disulfide, Dimethyl trisulfide. Group D: methyl salicylate, acetophenone, indole. Group E: Octanal, Heptanal, Decanoic acid. Group F: (Z)-Methyl-p-methoxycinnamate, (E)-Methyl-p-methoxycinnamate.