Compounds,Onium
《英文msh詞典》Compounds,Onium
[入口詞] Compounds,Onium
[主題詞] Onium Compounds
[英文釋義] 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+