Abstract

The carbonyl stretching frequencies for a series of ketones occur at a lower frequency in dimethyl sulfoxide solution than in carbon tetrachloride solution, and occur at intermediate frequencies depending upon the mole percent ratio (CH₃)₂SO/CCl₄. Ketones of form (CH₃)₂C=O, Φ(C=O)CH₃, and (Φ)₂C=O exhibit carbonyl stretching frequencies which are affected in the same manner by solvent effects. In general, inductive and resonance effects play an important role in determining the unperturbed carbonyl stretching frequencies of ketones.

Solvent Effects on Carbonyl Bands in Infrared Spectra*

Robert P. Bauman and Elinor Thomson
J. Opt. Soc. Am. 53(1) 202-203 (1963)

Effects of high-repetition-rate femtosecond laser micromachining on the physical and chemical properties of polylactide (PLA)

Wei Jia, Yiming Luo, Jian Yu, Bowen Liu, Minglie Hu, Lu Chai, and Chingyue Wang
Opt. Express 23(21) 26932-26939 (2015)

Heterodyne frequency measurements with a tunable diode laser-CO₂ laser spectrometer: spectroscopic reference frequencies in the 9.5-μm band of carbonyl sulfide

J. S. Wells, F. R. Petersen, and A. G. Maki
Appl. Opt. 18(21) 3567-3573 (1979)

Frequency-comb-based remote sensing of greenhouse gases over kilometer air paths

G. B. Rieker, F. R. Giorgetta, W. C. Swann, J. Kofler, A. M. Zolot, L. C. Sinclair, E. Baumann, C. Cromer, G. Petron, C. Sweeney, P. P. Tans, I. Coddington, and N. R. Newbury
Optica 1(5) 290-298 (2014)

Saturation-dip measurements for the ν₈ C-O stretching band of CH₃OH with a CO₂-laser-microwave-sideband spectrometer

Zhen-Dong Sun, Ronald M. Lees, and Li-Hong Xu
J. Opt. Soc. Am. B 23(11) 2398-2417 (2006)