{"title":"2-[N, N-双(1-萘甲基)-氨基甲基]-18-冠-6的合成及配位行为","authors":"K. Kubo, S. Sakaguchi, T. Sakurai","doi":"10.15017/7888","DOIUrl":null,"url":null,"abstract":"2-[N, N-Bis(l-naphthylmethyl)-aminomethyl]-18-crown-6 (3) gave intramolecular exciplex fluorescence, showing that the excited naphthalene chromophore was quenched by the nitrogen atom in the armed crown unit. The ann~ crown ether (3) was found to display unique photophysica1 properties in the presence of metal salts. Complexation of 3 with Zn 2 + increased the fluorescence intensity of the host by a factor of 2.4. IH and l3C NMR analyses of this complexation behavior revealed that Zn 2 + strongly coordinates with the anned crown nitrogen to cause a dramatic decrease in an intramolecular charge-transfer character.","PeriodicalId":22886,"journal":{"name":"The reports of Institute of Advanced Material Study Kyushu University","volume":"9 1","pages":"11-14"},"PeriodicalIF":0.0000,"publicationDate":"1998-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis and Complexation Behavior of 2-[N, N-Bis (1-naphthylmethyl)-aminomethyl]-18-crown-6\",\"authors\":\"K. Kubo, S. Sakaguchi, T. Sakurai\",\"doi\":\"10.15017/7888\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"2-[N, N-Bis(l-naphthylmethyl)-aminomethyl]-18-crown-6 (3) gave intramolecular exciplex fluorescence, showing that the excited naphthalene chromophore was quenched by the nitrogen atom in the armed crown unit. The ann~ crown ether (3) was found to display unique photophysica1 properties in the presence of metal salts. Complexation of 3 with Zn 2 + increased the fluorescence intensity of the host by a factor of 2.4. IH and l3C NMR analyses of this complexation behavior revealed that Zn 2 + strongly coordinates with the anned crown nitrogen to cause a dramatic decrease in an intramolecular charge-transfer character.\",\"PeriodicalId\":22886,\"journal\":{\"name\":\"The reports of Institute of Advanced Material Study Kyushu University\",\"volume\":\"9 1\",\"pages\":\"11-14\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1998-07-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The reports of Institute of Advanced Material Study Kyushu University\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.15017/7888\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The reports of Institute of Advanced Material Study Kyushu University","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15017/7888","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Synthesis and Complexation Behavior of 2-[N, N-Bis (1-naphthylmethyl)-aminomethyl]-18-crown-6
2-[N, N-Bis(l-naphthylmethyl)-aminomethyl]-18-crown-6 (3) gave intramolecular exciplex fluorescence, showing that the excited naphthalene chromophore was quenched by the nitrogen atom in the armed crown unit. The ann~ crown ether (3) was found to display unique photophysica1 properties in the presence of metal salts. Complexation of 3 with Zn 2 + increased the fluorescence intensity of the host by a factor of 2.4. IH and l3C NMR analyses of this complexation behavior revealed that Zn 2 + strongly coordinates with the anned crown nitrogen to cause a dramatic decrease in an intramolecular charge-transfer character.
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