硫
钋
化学
铵
离解(化学)
药物化学
烷基化
光化学
有机化学
催化作用
盐(化学)
作者
Ke‐Sheng Song,Lei Liu,Qing‐Xiang Guo
摘要
C−H bond dissociation energies of α-ammonium-, α-phosphonium-, or α-sulfonium-substituted methanes and toluenes were calculated to a precision of 1−2 kcal/mol. It was found that α-ammonium, α-phosphonium, and α-sulfonium groups all destabilize a methyl radical. α-Ammonium also destabilizes a benzyl radical, whereas α-phosphonium and α-sulfonium either slightly stabilize or destabilize a benzyl radical depending on their alkylation state.
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