…Carbon radicals with an unpaired electron on the carbon atom have seven valence electrons, and are generally very reactive and often difficult to isolate. In contrast, when the bond A:B is cleaved asymmetrically, and either A or B gains a bond electron pair, that is, A:B―→A: - +B + or A ++ : B- ……(2), this type of cleavage is called heterolytic cleavage. The products have a positive or negative charge, and both are ions. … *Some of the terminology that mentions "heterolytic cleavage" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…不対電子を炭素原子上にもつ炭素ラジカルは7個の価電子をもち,一般にきわめて反応性が高く単離が困難である場合が多い。これに対して結合A:Bが非対称に開裂し,AまたはBのいずれかが結合電子対を得るとき,すなわち A:B―→A:-+B+またはA++:B- ……(2) のような開裂を不均等開裂heterolytic cleavageという。生成物は正電荷または負電荷をもち,いずれもイオンである。… ※「heterolytic cleavage」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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