{"title":"末端氧的核磁共振。第11部分。二烷基酮及其相关化合物的17O NMR谱:电子激发能强去屏蔽的一个例子","authors":"H. Dahn, P. Péchy, H. Bestmann","doi":"10.1039/P29930001497","DOIUrl":null,"url":null,"abstract":"The important deshielding effect on the 17O signal of the disilyl ketone 1(Δδ ca. 400 ppm, compared with normal ketones such as 3) and of the monosilylketones 2, is proportional to the λ values of the UV–VIS absorption spectra; in agreement with the r-term of the Karplus–Pople eqn. (1), it is four times larger than the analogous effect on the 13C signals of the carbonyl carbon.","PeriodicalId":17267,"journal":{"name":"Journal of The Chemical Society-perkin Transactions 1","volume":"44 1","pages":"1497-1498"},"PeriodicalIF":0.0000,"publicationDate":"2010-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"NMR of terminal oxygen. Part 11. 17O NMR spectra of disilyl ketone and related compounds: a case of strong deshielding by electronic excitation energy\",\"authors\":\"H. Dahn, P. Péchy, H. Bestmann\",\"doi\":\"10.1039/P29930001497\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The important deshielding effect on the 17O signal of the disilyl ketone 1(Δδ ca. 400 ppm, compared with normal ketones such as 3) and of the monosilylketones 2, is proportional to the λ values of the UV–VIS absorption spectra; in agreement with the r-term of the Karplus–Pople eqn. (1), it is four times larger than the analogous effect on the 13C signals of the carbonyl carbon.\",\"PeriodicalId\":17267,\"journal\":{\"name\":\"Journal of The Chemical Society-perkin Transactions 1\",\"volume\":\"44 1\",\"pages\":\"1497-1498\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-08-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of The Chemical Society-perkin Transactions 1\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1039/P29930001497\",\"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 The Chemical Society-perkin Transactions 1","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1039/P29930001497","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
NMR of terminal oxygen. Part 11. 17O NMR spectra of disilyl ketone and related compounds: a case of strong deshielding by electronic excitation energy
The important deshielding effect on the 17O signal of the disilyl ketone 1(Δδ ca. 400 ppm, compared with normal ketones such as 3) and of the monosilylketones 2, is proportional to the λ values of the UV–VIS absorption spectra; in agreement with the r-term of the Karplus–Pople eqn. (1), it is four times larger than the analogous effect on the 13C signals of the carbonyl carbon.
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