Table 6 to R-3.2.1.2

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Table 6 Affixes for ionic and radical centres in parent structures

Operation Suffix Substituent
prefix ending Replacement
prefix ending

Radicals (see R-5.8.1) Loss of -yl --- ---

Cations (see R-5.8.2) Loss of -ylium -yliumyl -ylia

Addition of -ium -io ---

-iumyl

-onium -onio -onia

Anions (see R-5.8.3) Loss of -ide
-ite -idyl
--- -ida

-ate -ato ---

Addition of -uide -uidyl -uida

This HTML reproduction is as close as possible to the published version [see IUPAC, Commission on Nomenclature of Organic Chemistry. A Guide to IUPAC Nomenclature of Organic Compounds (Recommendations 1993), 1993, Blackwell Scientific publications, Copyright 1993 IUPAC]. If you need to cite these rules please quote this reference as their source.

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	Operation	Suffix	Substituent prefix ending	Replacement prefix ending

Radicals (see R-5.8.1)	Loss of	-yl	---	---
Cations (see R-5.8.2)	Loss of	-ylium	-yliumyl	-ylia
	Addition of	-ium	-io	---
			-iumyl
		-onium	-onio	-onia
Anions (see R-5.8.3)	Loss of	-ide -ite	-idyl ---	-ida
		-ate	-ato	---
	Addition of	-uide	-uidyl	-uida