{"title":"嘧啶-d0和嘧啶-d4的偏振光气相和晶体光谱","authors":"G. Sbrana, G. Adembri, S. Califano","doi":"10.1016/0371-1951(66)80170-4","DOIUrl":null,"url":null,"abstract":"<div><p>The infra-red spectra of pyrimidine-<em>d</em><sub>0</sub> and -<em>d</em><sub>4</sub> have been measured between 4000 and 300 cm<sup>−1</sup> in gas, liquid and solid phases. Since the analysis of the rotational band envelopes alone was not sufficient for a definite assignment, useful information was gained from the interpretation of the crystal spectra in polarized light of both isotopic species.</p><p>A new vibrational assignment is presented which differs from that given previously by L<span>ord</span><em>et al.</em> for the six fundamentals ν<sub>6<em>a</em></sub>, ν<sub>19<em>a</em></sub>, ν<sub>6<em>b</em></sub>, ν<sub>18<em>b</em></sub>, ν<sub>19<em>b</em></sub>, ν<sub>4</sub>. The experimental evidence for the new assignment is discussed in detail.</p></div>","PeriodicalId":101180,"journal":{"name":"Spectrochimica Acta","volume":"22 11","pages":"Pages 1831-1842"},"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)80170-4","citationCount":"54","resultStr":"{\"title\":\"Vapour and crystal spectra in polarized light of pyrimidine-d0 and pyrimidine-d4\",\"authors\":\"G. Sbrana, G. Adembri, S. Califano\",\"doi\":\"10.1016/0371-1951(66)80170-4\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The infra-red spectra of pyrimidine-<em>d</em><sub>0</sub> and -<em>d</em><sub>4</sub> have been measured between 4000 and 300 cm<sup>−1</sup> in gas, liquid and solid phases. Since the analysis of the rotational band envelopes alone was not sufficient for a definite assignment, useful information was gained from the interpretation of the crystal spectra in polarized light of both isotopic species.</p><p>A new vibrational assignment is presented which differs from that given previously by L<span>ord</span><em>et al.</em> for the six fundamentals ν<sub>6<em>a</em></sub>, ν<sub>19<em>a</em></sub>, ν<sub>6<em>b</em></sub>, ν<sub>18<em>b</em></sub>, ν<sub>19<em>b</em></sub>, ν<sub>4</sub>. The experimental evidence for the new assignment is discussed in detail.</p></div>\",\"PeriodicalId\":101180,\"journal\":{\"name\":\"Spectrochimica Acta\",\"volume\":\"22 11\",\"pages\":\"Pages 1831-1842\"},\"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)80170-4\",\"citationCount\":\"54\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Spectrochimica Acta\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0371195166801704\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Spectrochimica Acta","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0371195166801704","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Vapour and crystal spectra in polarized light of pyrimidine-d0 and pyrimidine-d4
The infra-red spectra of pyrimidine-d0 and -d4 have been measured between 4000 and 300 cm−1 in gas, liquid and solid phases. Since the analysis of the rotational band envelopes alone was not sufficient for a definite assignment, useful information was gained from the interpretation of the crystal spectra in polarized light of both isotopic species.
A new vibrational assignment is presented which differs from that given previously by Lordet al. for the six fundamentals ν6a, ν19a, ν6b, ν18b, ν19b, ν4. The experimental evidence for the new assignment is discussed in detail.
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