{"title":"电子顺磁共振","authors":"G. Eaton, S. Eaton","doi":"10.1002/0471266965.COM067.PUB2","DOIUrl":null,"url":null,"abstract":"Electron paramagnetic resonance (EPR), also known as electron spin resonance (ESR) or electron magnetic resonance (EMR), is the method of choice for characterizing unpaired electrons in materials. With proper attention to experimental methods, EPR can provide quantitation of the concentrations of unpaired electrons and characterize the chemical environment of the spin. It is routinely applied to solid or liquid samples. Cryogenic temperatures may be needed to observe transition metal ions with rapid electron spin relaxation. \n \n \nKeywords: \n \nelectron spin; \norganic radical; \nmetal ion; \nunpaired electron","PeriodicalId":170113,"journal":{"name":"Ewing’s Analytical Instrumentation Handbook, Fourth Edition","volume":"5 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Electron Paramagnetic Resonance\",\"authors\":\"G. Eaton, S. Eaton\",\"doi\":\"10.1002/0471266965.COM067.PUB2\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Electron paramagnetic resonance (EPR), also known as electron spin resonance (ESR) or electron magnetic resonance (EMR), is the method of choice for characterizing unpaired electrons in materials. With proper attention to experimental methods, EPR can provide quantitation of the concentrations of unpaired electrons and characterize the chemical environment of the spin. It is routinely applied to solid or liquid samples. Cryogenic temperatures may be needed to observe transition metal ions with rapid electron spin relaxation. \\n \\n \\nKeywords: \\n \\nelectron spin; \\norganic radical; \\nmetal ion; \\nunpaired electron\",\"PeriodicalId\":170113,\"journal\":{\"name\":\"Ewing’s Analytical Instrumentation Handbook, Fourth Edition\",\"volume\":\"5 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-05-18\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ewing’s Analytical Instrumentation Handbook, Fourth Edition\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1002/0471266965.COM067.PUB2\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ewing’s Analytical Instrumentation Handbook, Fourth Edition","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1002/0471266965.COM067.PUB2","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Electron paramagnetic resonance (EPR), also known as electron spin resonance (ESR) or electron magnetic resonance (EMR), is the method of choice for characterizing unpaired electrons in materials. With proper attention to experimental methods, EPR can provide quantitation of the concentrations of unpaired electrons and characterize the chemical environment of the spin. It is routinely applied to solid or liquid samples. Cryogenic temperatures may be needed to observe transition metal ions with rapid electron spin relaxation.
Keywords:
electron spin;
organic radical;
metal ion;
unpaired electron
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