{"title":"The integrated absorption intensity of the CO stretching bands of normal and 15N-barbituric acid","authors":"S. Pinchas","doi":"10.1016/0371-1951(66)80176-5","DOIUrl":null,"url":null,"abstract":"<div><p>The integrated absorption intensity of the CO stretching bands of 99 % <sup>15</sup>N-barbituric acid dissolved in dimethylsulphoxide was measured in comparison with that of the CO bands of normal barbituric acid and was found to be practically the same in both cases.</p><p>The origin of the different CO bands of barbituric acid is discussed on basis of the observed <sup>15</sup>N-isotope shifts of these bands. The assignment of other bands observed for the solution of this acid is suggested.</p></div>","PeriodicalId":101180,"journal":{"name":"Spectrochimica Acta","volume":"22 11","pages":"Pages 1889-1895"},"PeriodicalIF":0.0000,"publicationDate":"1966-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0371-1951(66)80176-5","citationCount":"10","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Spectrochimica Acta","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0371195166801765","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 10
Abstract
The integrated absorption intensity of the CO stretching bands of 99 % 15N-barbituric acid dissolved in dimethylsulphoxide was measured in comparison with that of the CO bands of normal barbituric acid and was found to be practically the same in both cases.
The origin of the different CO bands of barbituric acid is discussed on basis of the observed 15N-isotope shifts of these bands. The assignment of other bands observed for the solution of this acid is suggested.
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