| 醇-二苯甲酮光化夺氢反应活泼自由基的ESR研究 |
| |
| 引用本文： | 徐广智,许红林,刘杨,宋心琦.醇-二苯甲酮光化夺氢反应活泼自由基的ESR研究[J].影像科学与光化学,1985,3(4):43-47. |
| |
| 作者姓名： | 徐广智 许红林 刘杨 宋心琦 |
| |
| 作者单位： | 1. 中国科学院化学研究所;2. 清华大学化学化工系 |
| |
| 摘 要： | 本文用自由基捕捉剂2,3,4,6-四甲基亚硝基苯(ND)及苯亚甲基叔丁基氮氧化合物(PBN)与ESR相结合的方法研究了CnH2n+1OH(n=1,2,…8)、(CH3)2CH(CH2)nOH(n=0,1,2)、CH2=CHCH2OH及C6H5CH2OH等十三种醇与二苯甲酮的光化夺氢反应中的活泼自由基,结果表明: 1.用ND时,二苯酮分别夺取CnH2n+1OH、(CH3)2CH(CH2)nOH及RCH2OH(R=CH2=CH、C6H5)中α-C、叔-C及α-C上的氢,而捕捉到Cn-1H2n-1CHOH、(CH3)2CH(CH2)nOH及RCHOH自由基。 2.用PBN时,捕捉的自由基与ND捕获的相同。
|
| 收稿时间： | 1984-10-15 |
A STUDY OF ESR SPECTRA OF ACTIVE RADICALS FORMED IN PHOTOCHEMICAL HYDROGEN ABSTRA-CTION REACTION BETWEEN ALCOHOL AND BENZOPHENONE |
| |
| XU GUANG-ZHI,XU HONG-LIN,LIU YANG,SONG XIN-QI.A STUDY OF ESR SPECTRA OF ACTIVE RADICALS FORMED IN PHOTOCHEMICAL HYDROGEN ABSTRA-CTION REACTION BETWEEN ALCOHOL AND BENZOPHENONE[J].Imaging Science and Photochemistry,1985,3(4):43-47. |
| |
| Authors: | XU GUANG-ZHI XU HONG-LIN LIU YANG SONG XIN-QI |
| |
| Affiliation: | 1. Institute of Chemistry, Academia Sinica;2. Department of Chemistry and Chemical Engineering, Qinghua University |
| |
| Abstract: | Active radicals formed in the photochemical hydrogen abstraction between alcohol and benzophenone have been studied with the combination of ESR spectroscopy and spin trapping technique. The results show that: 1. For n-CnH2n+1OH (n=1, 2,…8), benzophenone abstrats hydrogen from the α-C of alcohol to form n-Cn-1 H2n-1 CHOH radicals. 2. For (CH3)2CH(CH2)nOH (n=0, 1,2), benzophenone abstracts hydrogen fromtertiary carbon of alcohol to form (CH3)2C(CH2)nOH radicals. 3. For RCH2OH (R=CH2=CH, C6H5), benzophenone abstracts hydrogen from α-Cof RCH2OH to form RCHOH. |
| |
| Keywords: | |
|
| 点击此处可从《影像科学与光化学》浏览原始摘要信息 |
|
点击此处可从《影像科学与光化学》下载全文 |
|
