{"title":"CH-Bindungsmomente und IR-Intensität von Benzol-Derivaten—II. CH- und CD-Valenzschwingungen deuterierter Benzol-Monoderivate","authors":"E.D. Schmid, F. Langenbucher","doi":"10.1016/0371-1951(66)80163-7","DOIUrl":null,"url":null,"abstract":"<div><p>The absorption intensities of the CH and CD stretching vibrations of some deuterated benzene monoderivatives have been measured in CCl<sub>4</sub> solution. The compounds are of the type 4-D-phenyl-X and 2,4,6-D<sub>3</sub>-phenyl-X. The observed intensities can be interpreted as sum of contributions <em>I<sub>o</sub></em>, <em>I<sub>m</sub></em>, and <em>I<sub>p</sub></em>, of the participating CH or CD oscillators. By using also the data for the undeuterated compounds phenyl-X these bond contributions can be evaluated separately. They show a decrease with the T<span>aft</span> substituent parameter σ<sub>I</sub>, that is greatest in <em>ortho</em> and smallest in <em>para</em> position. The isotope intensity sum rule is verified for the CH and CD stretching vibrations in all the cases considered.</p></div>","PeriodicalId":101180,"journal":{"name":"Spectrochimica Acta","volume":"22 9","pages":"Pages 1621-1632"},"PeriodicalIF":0.0000,"publicationDate":"1966-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0371-1951(66)80163-7","citationCount":"13","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Spectrochimica Acta","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0371195166801637","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 13
Abstract
The absorption intensities of the CH and CD stretching vibrations of some deuterated benzene monoderivatives have been measured in CCl4 solution. The compounds are of the type 4-D-phenyl-X and 2,4,6-D3-phenyl-X. The observed intensities can be interpreted as sum of contributions Io, Im, and Ip, of the participating CH or CD oscillators. By using also the data for the undeuterated compounds phenyl-X these bond contributions can be evaluated separately. They show a decrease with the Taft substituent parameter σI, that is greatest in ortho and smallest in para position. The isotope intensity sum rule is verified for the CH and CD stretching vibrations in all the cases considered.
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