Canadian Medical Guide > Chemicals and Drugs > Organic Chemicals > Onium Compounds Terms and Definitions




Onium Compounds

Medical Definition: Ions with the suffix -onium, indicating cations with coordination number 4 of the type RxA+ which are analogous to AMMONIUM COMPOUNDS (H4N+). Ions include phosphonium R4P+, oxonium R3O+, sulfonium R3S+, chloronium R2Cl+
Guide Notes: DF: ONIUM CPDS
Onium Compounds Categories.
Canadian Medical Guide Definition Sulfonium Compounds - Sulfur compounds in which the sulfur atom is attached to three organic radicals and an electronegative element or radical.

Onium Compounds Medical Definitions and Terms

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