sulfonium compounds
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: hydrocarbyl groups, onium compounds
PAC, 1995, 67, 1307. 'Glossary of class names of organic compounds and reactivity intermediates based on structure (IUPAC Recommendations 1995)' on page 1369 (