引用本文:
李鸿波, 王珀会. 浅析质谱中的广义麦式重排[J]. 大学化学,
2020, 35(1): 111-117.
doi:
10.3866/PKU.DXHX201905005
Citation: Hongbo Li, Pohui Wang. Analysis of General McLafferty Rearrangement in Mass Spectrometry[J]. University Chemistry, 2020, 35(1): 111-117. doi: 10.3866/PKU.DXHX201905005
Citation: Hongbo Li, Pohui Wang. Analysis of General McLafferty Rearrangement in Mass Spectrometry[J]. University Chemistry, 2020, 35(1): 111-117. doi: 10.3866/PKU.DXHX201905005
浅析质谱中的广义麦式重排
English
Analysis of General McLafferty Rearrangement in Mass Spectrometry
Abstract:
McLafferty rearrangement is an empirical rule proposed for the rearrangement of molecular ions in mass spectrometry. Further expanding the concept, cleaving process and application of classic McLafferty rearrangement, the general McLafferty rearrangement is formed. In the general McLafferty rearrangement, the γ-H transference of six-membered ring cooperatively completes in one step. The cooperative rearrangement of molecular ions can also occur through a six-membered or five-membered ring transition state and the γ-R or β-H (R) of molecular ions accomplishes the transference, which results in different fragment ions. This general McLafferty rearrangement can occur in various compounds with most functional group, which is helpful in mass spectrometry analysis and compound structure research and extend the breadth of the applications.
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[2] 范康年, 陆靖. 谱学导论. 北京:高等教育出版社, 2011:204-205.
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[3] 邓芹英, 刘岚, 邓慧敏. 波谱分析教程. 北京:科学出版社, 2007:232-239.
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