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Updated: Aug 14, 2026

Interfacial Molecular-level Structures of Polymers and Biomacromolecules Revealed via Sum Frequency Generation Vibrational Spectroscopy
Published on: August 13, 2019
Millimeter-Wave Free Jet Absorption Spectrum of SD Methylthioglycolate: Description of the SH Torsion Double Minimum
1Dipartimento di Chimica "G. Ciamician,", Universita di Bologna, Via Selmi 2, Bologna, I-40126, Italy
Abstract:
The free jet absorption millimeter-wave spectrum of methylthioglycolate-SD has been investigated in the 60-78 GHz frequency range. The double-minimum potential associated with the SD group torsion generates a vibrational spacing Delta01 = 8285(5) MHz between the O+ and O- states of the A sublevel. This splitting, compared to the corresponding value of 18 953 MHz for the normal species, suggests a large involvement of the sulfur atom in the motion. A model is given to describe this motion. Copyright 1997 Academic Press. Copyright 1997Academic Press
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