{"title":"硝基氧自由基。第十部分[2,2]对环苯二烯双氮氧化物的电子自旋共振谱","authors":"A. R. Forrester, R. Ramasseul","doi":"10.1039/J29710001645","DOIUrl":null,"url":null,"abstract":"Spectra of three [2,2]paracyclophanylene bisnitroxides have been measured. For two of the biradicals the exchange interaction J is much larger than the nitrogen hyperfine splitting and five-line e.s.r. spectra are observed, while for the third the zero-field splitting is so large that its solution spectrum cannot be resolved. Values of the zero-field tensor D for all three biradicals have been evaluated by measuring their spectra in glasses.","PeriodicalId":17268,"journal":{"name":"Journal of The Chemical Society B: Physical Organic","volume":"20 1","pages":"1645-1647"},"PeriodicalIF":0.0000,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Nitroxide radicals. Part X. Electron spin resonance spectra of [2,2]paracyclophanylene bisnitroxides\",\"authors\":\"A. R. Forrester, R. Ramasseul\",\"doi\":\"10.1039/J29710001645\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Spectra of three [2,2]paracyclophanylene bisnitroxides have been measured. For two of the biradicals the exchange interaction J is much larger than the nitrogen hyperfine splitting and five-line e.s.r. spectra are observed, while for the third the zero-field splitting is so large that its solution spectrum cannot be resolved. Values of the zero-field tensor D for all three biradicals have been evaluated by measuring their spectra in glasses.\",\"PeriodicalId\":17268,\"journal\":{\"name\":\"Journal of The Chemical Society B: Physical Organic\",\"volume\":\"20 1\",\"pages\":\"1645-1647\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1971-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of The Chemical Society B: Physical Organic\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1039/J29710001645\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of The Chemical Society B: Physical Organic","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1039/J29710001645","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Nitroxide radicals. Part X. Electron spin resonance spectra of [2,2]paracyclophanylene bisnitroxides
Spectra of three [2,2]paracyclophanylene bisnitroxides have been measured. For two of the biradicals the exchange interaction J is much larger than the nitrogen hyperfine splitting and five-line e.s.r. spectra are observed, while for the third the zero-field splitting is so large that its solution spectrum cannot be resolved. Values of the zero-field tensor D for all three biradicals have been evaluated by measuring their spectra in glasses.
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