sulfonium compounds 

https://doi.org/10.1351/goldbook.S06121
Compounds having the structure R3S+ and associated anion (generally, but not necessarily, all three R groups are hydrocarbyl). E.g. [(CH3)3S]+Cl−, trimethylsulfonium chloride, or
See: onium compounds
Source:
PAC, 1995, 67, 1307. (Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)) on page 1369 [Terms] [Paper]
Citation: 'sulfonium compounds' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.S06121 RIS BibTex EndNote
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Last revised: February 24, 2014