{"title":"57Fe Mössbauer Fc+AsF6-两种晶型的参数及铁离子四极分裂的标志","authors":"R. Herber, I. Nowik, D. Braga, M. Polito","doi":"10.14494/JNRS2000.7.13","DOIUrl":null,"url":null,"abstract":"Temperature-dependent 57Fe Mossbauer effect spectroscopy has been used to characterize the hyperfine and dynamical properties of the metal atom in two crystallographic forms of ferrocenium hexafluoroarsenate. The temperature dependence of the recoil-free fraction and the spin-lattice relaxation rates have been determined over the interval 89<T<300 K and shows a small difference between the two crystallographic forms. The sign of the quadrupole splitting parameter in the Fc+ cation has been elucidated in a transverse magnetic field experiment at room temperature.","PeriodicalId":16569,"journal":{"name":"Journal of nuclear and radiochemical sciences","volume":"47 1","pages":"13-15"},"PeriodicalIF":0.0000,"publicationDate":"2006-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"57Fe Mössbauer Parameters of Two Crystal Polymorphs of Fc+AsF6- and the Sign of the Quadrupole Splitting in the Ferrocenium Ion\",\"authors\":\"R. Herber, I. Nowik, D. Braga, M. Polito\",\"doi\":\"10.14494/JNRS2000.7.13\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Temperature-dependent 57Fe Mossbauer effect spectroscopy has been used to characterize the hyperfine and dynamical properties of the metal atom in two crystallographic forms of ferrocenium hexafluoroarsenate. The temperature dependence of the recoil-free fraction and the spin-lattice relaxation rates have been determined over the interval 89<T<300 K and shows a small difference between the two crystallographic forms. The sign of the quadrupole splitting parameter in the Fc+ cation has been elucidated in a transverse magnetic field experiment at room temperature.\",\"PeriodicalId\":16569,\"journal\":{\"name\":\"Journal of nuclear and radiochemical sciences\",\"volume\":\"47 1\",\"pages\":\"13-15\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2006-06-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of nuclear and radiochemical sciences\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.14494/JNRS2000.7.13\",\"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 nuclear and radiochemical sciences","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.14494/JNRS2000.7.13","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
57Fe Mössbauer Parameters of Two Crystal Polymorphs of Fc+AsF6- and the Sign of the Quadrupole Splitting in the Ferrocenium Ion
Temperature-dependent 57Fe Mossbauer effect spectroscopy has been used to characterize the hyperfine and dynamical properties of the metal atom in two crystallographic forms of ferrocenium hexafluoroarsenate. The temperature dependence of the recoil-free fraction and the spin-lattice relaxation rates have been determined over the interval 89
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