Levy L A, Oswald E O
Biomed Mass Spectrom. 1976 Apr;3(2):88-90. doi: 10.1002/bms.1200030209.
Isomeric chlorinated biphenyls are observed to yield very similar mass spectra, rarely exhibiting a [M - Cl]+ fragment of any significant magnitude. However, those isomers containing three ortho chloro substituents display a relatively intense [M - Cl]+ fragment. A rationalization for this observation is put forth on the basis of the relative stabilities of both product and reactant.
人们观察到，异构氯化联苯会产生非常相似的质谱图，很少出现任何显著强度的[M - Cl]+碎片。然而，那些含有三个邻位氯取代基的异构体显示出相对较强的[M - Cl]+碎片。基于产物和反应物的相对稳定性，对这一观察结果提出了一种合理解释。
