The (dimethylamino)methyl radical. A neutralization-reionization and ab initio study
The (dimethylamino)methyl radical. A neutralization-reionization and ab initio study
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(二甲氨基)甲基。
DOI：
10.1021/ja00078a058
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
R. Cerny
中科院分区：
文献类型：
--
作者：
S. Shaffer;F. Tureček;R. Cerny
（二甲氨基）甲基自由基（1）是在气相中通过（CH 3）2N + =CH 2（1 +）与CH 3、（CH 3）3 N和CH 3SSCH 3的碰撞中和以及电离的1，2-双（二甲氨基）乙烷（2）在8 keV下的碰撞活化解离产生的，并通过中和-再电离质谱表征。1+的垂直中和涉及大的Franck-Condon效应，并产生具有≥76 kJmol-1过剩内能的1。中性分子1失去甲基后离解，生成CH 3 N=CH 2，再电离后进一步离解
The (dimethylamino)methyl radical (1) is generated in the gas phase by collisional neutralization of (CH 3 ) 2 N + =CH 2 (1 + ) with Xe, (CH 3 ) 3 N, and CH 3 SSCH 3 and by collisionally activated dissociation of ionized 1,2-bis(dimethylamino)ethane (2) at 8 keV and characterized by neutralization-reionization mass spectrometry. Vertical neutralization of 1+involves large Franck-Condon effects and produces 1 with ≥76 kJ mol -1 excess internal energy. Neutral 1 dissociates by loss of methyl to give CH 3 N=CH 2 which undergoes further dissociation upon reionization