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sulfuryl

alt. (context chemistry English) the divalent radical and functional group SO2= n. (context chemistry English) the divalent radical and functional group SO2=

Wikipedia
Sulfuryl

The sulfuryl group is a functional group in inorganic chemistry consisting of a sulfur atom covalently bonded to two oxygen atoms (OSX).

It occurs in compounds such as sulfuryl chloride, SOCl and sulfuryl fluoride, SOF.

In organic chemistry, this group is found in sulfones (RSOR'), and sulfonyl halides (RSOX) where it is called the sulfonyl group.