Vibrational spectra of thiuram sulfides: Normal coordinate analysis of tetramethylthiuram mono‐, di‐, and tetrasulfides

Abstract

AbstractThe normal coordinate analyses of tetramethylthiuram mono‐, di‐, and tetrasulfides have been carried out by utilizing vibrational energies obtained from infrared and Raman spectroscopic data reported here. The CS vibration is demonstrated to be highly coupled and to contribute to frequencies in the 850–1000 cm−1 region, but can be identified based on the strong Raman intensity. The results are useful in interpreting the spectra of these complex vulcanizing agents.