Related Experiment Video
Updated: Aug 29, 2026

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
Published on: April 9, 2018
Vibration assignment of carbon-sulfur bond in 2-thione-1,3-dithiole-4,5-dithiolate derivatives
1State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.
Abstract:
The higher frequency peak near 1050 cm(-1) of the doublet in the infrared and Raman spectra of 2-thione-1,3-dithiole-4,5-dithiolate (DMIT) derivatives corresponds mainly to the stretching vibration of carbon-sulfur double bond in the terminal S=CS2 fragments of DMIT skeletons while the lower one corresponds mainly to the Fermi resonance peak between overtones of symmetric stretching vibration of two carbon-sulfur single bond in the S=CS2 fragment of DMIT skeletons and the higher frequency. On the other hand, the higher frequency near 500 cm(-1) corresponds mainly to the symmetric stretching vibration of two carbon-sulfur single bond in the S=CS2 fragments of DMIT skeletons while the lower one corresponds mainly to the symmetric stretching vibration of the four carbon-sulfur single bond in the S2C=CS2 fragments of DMIT skeletons.
Related Concept Videos
Structure and Nomenclature of Thiols and Sulfides
Preparation and Reactions of Thiols
Preparation and Reactions of Sulfides
Hybridization of Atomic Orbitals II
Resonance
Hybridization of Atomic Orbitals I

