Open AccessThe raman spectra of some aldehydes and of mesitylene
Author(s) -
S. Venkateswaran,
S. Bhagavantam
Publication year - 1930
Publication title -
proceedings of the royal society of london. series a, containing papers of a mathematical and physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9150
pISSN - 0950-1207
DOI - 10.1098/rspa.1930.0107
Subject(s) - mesitylene , raman spectroscopy , chemistry , spectral line , analytical chemistry (journal) , organic chemistry , toluene , optics , physics , astronomy
The results of a study of the Raman spectra of nine aldehydes and of mesitylene are reported and discussed in this paper. Of these substances, only a few, namely, paraldehyde, acetaldehyde and benzaldehyde have been previously investigated by other authors and the rest receive attention for the first time. The experimental arrangements were the same as those described by Wood. Hilger’s quartz. E2 and a two prism glass spectrograph of high light gathering power were used for studying the spectra. The liquids were mostly Kahlbaum’s or Merck’s extra pure and were further purified by distillation in vacuum before use. Capric, undecylic, and lauric aldehydes were, however, obtained from other sources and were used as received. In the following tables are given the wave-numbers and the intensities of the Raman lines, and the shifts in wave-numbers between them and the exciting lines. In the column ∆v the lettersa, b, c, d, e, f, g, h, k, l andm represent the exciting lines of the mercury spectrumλ A. U. 3650⋅1, 3654⋅8, 3663⋅3, 4046⋅6, 4077⋅8, 4339⋅2, 4347⋅5, 4358⋅3, 5460⋅7, 5769⋅5, 5790⋅5 respectively.