{"title":"CF3、CHF2、CH2F的远红外激光磁共振检测","authors":"J. Nolte, H. Gg. Wagner, F. Temps, T.J. Sears","doi":"10.1002/bbpc.199700002","DOIUrl":null,"url":null,"abstract":"<p>Far infrared laser magnetic resonance (FIR-LMR) spectra of CF<sub>3</sub>, CHF<sub>2</sub>, and CH<sub>2</sub>F radicals were observed in the 300–800 μm wavelength region in the reactions of F atoms with a series of different hydrocarbon and partially fluorinated hydrocarbon molecules. To identify the carriers of the observed resonance patterns and to exclude or identify contamination of the spectra by additional resonances from other paramagnetic species, numerous chemical tests were developed and performed. With optimized sources and the chemical tests in hand, many spectra could be unambiguously attributed to CF<sub>3</sub>, CHF<sub>2</sub>, and CH<sub>2</sub>F, respectively. The present study reports the first gas phase detection of CHF<sub>2</sub> radicals in their ground electronic state.</p>","PeriodicalId":100156,"journal":{"name":"Berichte der Bunsengesellschaft für physikalische Chemie","volume":"101 10","pages":"1421-1428"},"PeriodicalIF":0.0000,"publicationDate":"2014-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/bbpc.199700002","citationCount":"2","resultStr":"{\"title\":\"Far Infrared Laser Magnetic Resonance Detection of CF3, CHF2, and CH2F\",\"authors\":\"J. Nolte, H. Gg. Wagner, F. Temps, T.J. Sears\",\"doi\":\"10.1002/bbpc.199700002\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Far infrared laser magnetic resonance (FIR-LMR) spectra of CF<sub>3</sub>, CHF<sub>2</sub>, and CH<sub>2</sub>F radicals were observed in the 300–800 μm wavelength region in the reactions of F atoms with a series of different hydrocarbon and partially fluorinated hydrocarbon molecules. To identify the carriers of the observed resonance patterns and to exclude or identify contamination of the spectra by additional resonances from other paramagnetic species, numerous chemical tests were developed and performed. With optimized sources and the chemical tests in hand, many spectra could be unambiguously attributed to CF<sub>3</sub>, CHF<sub>2</sub>, and CH<sub>2</sub>F, respectively. The present study reports the first gas phase detection of CHF<sub>2</sub> radicals in their ground electronic state.</p>\",\"PeriodicalId\":100156,\"journal\":{\"name\":\"Berichte der Bunsengesellschaft für physikalische Chemie\",\"volume\":\"101 10\",\"pages\":\"1421-1428\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2014-03-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1002/bbpc.199700002\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Berichte der Bunsengesellschaft für physikalische Chemie\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/bbpc.199700002\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Berichte der Bunsengesellschaft für physikalische Chemie","FirstCategoryId":"1085","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/bbpc.199700002","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Far Infrared Laser Magnetic Resonance Detection of CF3, CHF2, and CH2F
Far infrared laser magnetic resonance (FIR-LMR) spectra of CF3, CHF2, and CH2F radicals were observed in the 300–800 μm wavelength region in the reactions of F atoms with a series of different hydrocarbon and partially fluorinated hydrocarbon molecules. To identify the carriers of the observed resonance patterns and to exclude or identify contamination of the spectra by additional resonances from other paramagnetic species, numerous chemical tests were developed and performed. With optimized sources and the chemical tests in hand, many spectra could be unambiguously attributed to CF3, CHF2, and CH2F, respectively. The present study reports the first gas phase detection of CHF2 radicals in their ground electronic state.
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