carbonium ion

Japanese: carbonium ion(英語表記)carboniumion
carbonium ion

...A term that is the opposite of carbanion, and is a general term for carbonium ions and carbenium ions. A carbocation with a coordination number of 4 or 5 charged carbon atoms is defined as a carbonium ion, and a carbocation with a coordination number of 3 charged carbon atoms is defined as a carbenium ion. This definition was proposed by American G. Olah in 1972, and is now often followed.

*Some of the terminology explanations that mention "carbonium ion" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…カルバニオンの対照語で,カルボニウムイオンおよびカルベニウムイオンの総称である。配位数4または5の荷電炭素原子を有するカルボカチオンをカルボニウムイオンcarbonium ion,配位数3の荷電炭素原子を有するカルボカチオンをカルベニウムイオンcarbenium ionと定義する。この定義は1972年アメリカのオラーG.Olahにより提唱され,現在ではこの定義に従う場合が多い。…

※「carbonium ion」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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