A tentative assignment of vibrational frequencies for CH3SO2F and CH3SO2Cl is established. The available spectral data from literature were supplemented by new infrared measurements in the liquid phase. A normal coordinate analysis was performed on the basis of the assigned frequencies. Calculated mean amplitudes of vibration from this analysis are reported. The results are compared with mean amplitudes from recent gas electron diffraction data.
The i.r. and Raman spectra of 1-halo-3,3,3-trifluoropropynes CF3-CC-X (X = Cl, Br and I) were examined in the respective regions 4000–200 and 3300–50 cm−1. The i.r. spectra were recorded in the gas phase and in solution while the Raman spectra were obtained from the pure liquids. Assignments are proposed for all 10 fundamentals in each molecule.
Harmonic force fields are developed for 1-chloro-, 1-bromo-, and 1- iodo-3,3,3-trifluoropropyne on the basis of recent infrared and Raman data. Calculated mean amplitudes of vibration, Bastiansen-Morino shrinkage effects, and Coriolis coupling constants are reported.
The properties and structures of aqueous sodium caprylate solutions : III the viscosities at temperatures between 20 and 40 C