Shrinking of C–S bonds of organosulfonic acids in superacidic media—investigation of the protonation of methanesulfonic acid and benzenesulfonic acid and their limits
Year: 2025
Type: article
Abstract: (M = As and Sb) were investigated to explore the strengthening effects of protonation on the C-S bond and the limits of the protonability of sulfonic acids. Herein, we report the monoprotonated species of methanesulfonic acid and benzenesulfonic acid, respectively. The salts were characterized by low-temperature vibrational spectroscopy, single-crystal X-ray diffraction, and NMR spectroscopic measurements. The experimental data are discussed together with quantum chemical calculations at the B3LYP/aug-cc-pVTZ-level of theory.
Source: Dalton Transactions
DOI: 10.1039/d5dt00864f
Institution: Ludwig-Maximilians-Universität München
Language: English
Subfield: Spectroscopy
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4412520188