{"title":"Magnetic Properties of N-Nonylphenothiazine Radical Cations Depending on Counter Anions","authors":"Sett Aung Naing, Takeshi Naota, Daisuke Shiomi, Kentaro Matsuda, Kazunobu Sato, Shuichi Suzuki","doi":"10.1093/chemle/upae135","DOIUrl":null,"url":null,"abstract":"Magnetic properties of N-nonylphenothiazine radical cations were found to vary depending on their counter ions. The radical cations in NTf2– (bis(N-trifluoromethanesulfonyl)imide ion), OTf– (trifluoromethanesulfonate), and BF4– salts formed π-dimer with strong antiferromagnetic interactions. The SbF6– salt exhibited paramagnetic properties with quite weak antiferromagnetic interaction. Interestingly, the NTf2– salt transformed to the paramagnetic liquid state upon heating to 78 oC.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chemistry Letters","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1093/chemle/upae135","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Magnetic properties of N-nonylphenothiazine radical cations were found to vary depending on their counter ions. The radical cations in NTf2– (bis(N-trifluoromethanesulfonyl)imide ion), OTf– (trifluoromethanesulfonate), and BF4– salts formed π-dimer with strong antiferromagnetic interactions. The SbF6– salt exhibited paramagnetic properties with quite weak antiferromagnetic interaction. Interestingly, the NTf2– salt transformed to the paramagnetic liquid state upon heating to 78 oC.
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