| 1,3,4-噁二唑衍生物的EI谱及取代基效应的研究(Ⅰ) |
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| 引用本文： | 刘有邦,陈茂齐,李宝灵,张自义,冯小明. 1,3,4-噁二唑衍生物的EI谱及取代基效应的研究(Ⅰ)[J]. 分析测试学报, 1990, 0(6) |
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| 作者姓名： | 刘有邦 陈茂齐 李宝灵 张自义 冯小明 |
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| 作者单位： | 中国科学院兰州化学物理研究所(刘有邦，陈茂齐，李宝灵)，兰州大学化学系(张自义)，兰州大学化学系(冯小明) |
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| 摘 要： | 本文研究了新近合成的十三个2-芳基-5(2-苯基-4-喹啉基)-1,3,4-噁二唑衍生物的电子轰击(EI-70eV)质谱。应用亚稳离子和质量准确测定方法研究了这些化合物在EI-70eV条件下的断裂途径。归纳出以环状结构的分解和重排为特征的几种主要断裂方式。并用Hammett常数σ拟合了取代基效应与裂解反应的关系。
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| 关 键 词： | 质谱 噁二唑衍生物 取代基效应 |
Study on Mass spectra of Some Oxadiazole Derivatives and Substituent Effects(I) |
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| Liu Youbang,Chen Maoqi,Li Baoling,Zhang Ziyi,Eeng Xiaoming Lanzhou Institute of Chemical Physics,Academia Sinica Chemical. Study on Mass spectra of Some Oxadiazole Derivatives and Substituent Effects(I)[J]. Journal of Instrumental Analysis, 1990, 0(6) |
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| Authors: | Liu Youbang Chen Maoqi Li Baoling Zhang Ziyi Eeng Xiaoming Lanzhou Institute of Chemical Physics Academia Sinica Chemical |
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| Affiliation: | Liu Youbang,Chen Maoqi,Li Baoling,Zhang Ziyi,Eeng Xiaoming Lanzhou Institute of Chemical Physics,Academia Sinica Chemical Department of Lanzhou University |
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| Abstract: | EI mass spectra of 13 derivatives of 1,3,4-oxadiazole were studied by the authors. Metas-table ion and accurate mass mepsrement method were used to study the fragmentation pathwaysof these derivatives in condition og EI-70eV. And some main patterns of fragmentation withfeatures of cyclic structure decomposition and rearrangement were thus obtained. The relationsbetween substituent effects and decomposition reaction were discussed using Hammett constants. |
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| Keywords: | Mass spectrometry oxadiazole deriyatives substituent effect |
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