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Hydrogen bonding in malonic acids 丙二酸中的氢键
Spectrochimica Acta Pub Date : 1966-07-01 DOI: 10.1016/0371-1951(66)80027-9
E.S. Hanrahan
{"title":"Hydrogen bonding in malonic acids","authors":"E.S. Hanrahan","doi":"10.1016/0371-1951(66)80027-9","DOIUrl":"10.1016/0371-1951(66)80027-9","url":null,"abstract":"","PeriodicalId":101180,"journal":{"name":"Spectrochimica Acta","volume":"22 7","pages":"Pages 1243-1244"},"PeriodicalIF":0.0,"publicationDate":"1966-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0371-1951(66)80027-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86242855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Narrow band optical absorption of CrF2 CrF2的窄带光吸收
Spectrochimica Acta Pub Date : 1966-07-01 DOI: 10.1016/0371-1951(66)80042-5
W.W. Holloway Jr., M. Kestigian
{"title":"Narrow band optical absorption of CrF2","authors":"W.W. Holloway Jr., M. Kestigian","doi":"10.1016/0371-1951(66)80042-5","DOIUrl":"https://doi.org/10.1016/0371-1951(66)80042-5","url":null,"abstract":"","PeriodicalId":101180,"journal":{"name":"Spectrochimica Acta","volume":"22 7","pages":"Pages 1381-1382"},"PeriodicalIF":0.0,"publicationDate":"1966-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0371-1951(66)80042-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91682344","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Infrared measurement of configuration and stereoregularity in polymers—I. Theory 聚合物构型和立体规整性的红外测量。理论
Spectrochimica Acta Pub Date : 1966-07-01 DOI: 10.1016/0371-1951(66)80025-5
J.L. Koenig
{"title":"Infrared measurement of configuration and stereoregularity in polymers—I. Theory","authors":"J.L. Koenig","doi":"10.1016/0371-1951(66)80025-5","DOIUrl":"10.1016/0371-1951(66)80025-5","url":null,"abstract":"<div><p>A perturbation treatment of the intramolecular coupling in helical molecules is examined. A general classification of characteristic band types resulting from changes in stereoregularity is established. Comparisons are made with previous classifications and experiment.</p></div>","PeriodicalId":101180,"journal":{"name":"Spectrochimica Acta","volume":"22 7","pages":"Pages 1223-1232"},"PeriodicalIF":0.0,"publicationDate":"1966-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0371-1951(66)80025-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84134030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
The infra-red spectra (650-222 cm−1) of some compounds containing the 2-pyridyl group 某些含有2-吡啶基的化合物的红外光谱(650-222 cm−1)
Spectrochimica Acta Pub Date : 1966-07-01 DOI: 10.1016/0371-1951(66)80040-1
G.C. Kulasingam, W.R. McWhinnie, Rosemary R. Thomas
{"title":"The infra-red spectra (650-222 cm−1) of some compounds containing the 2-pyridyl group","authors":"G.C. Kulasingam,&nbsp;W.R. McWhinnie,&nbsp;Rosemary R. Thomas","doi":"10.1016/0371-1951(66)80040-1","DOIUrl":"https://doi.org/10.1016/0371-1951(66)80040-1","url":null,"abstract":"<div><p>The infra-red spectra (650-222 cm<sup>−1</sup>) of nine 2-substituted pyridines, including those of four 2-pyridylamines, have been recorded. Solid compounds have been examined as mulls and as chloroform and/or carbon tetrachloride solutions and pronounced solid state effects were noted in one case. Empirical assignments of the major bands have been attempted and it is concluded that ν<sub>6<em>b</em></sub>-α(<em>CCC</em>), ν<sub>11</sub>-X-sens φ(<em>CC</em>) and ν<sub>16<em>a</em></sub>8φ(<em>CC</em>) may be assigned with some certainty even when the molecular complexity is considerable.</p></div>","PeriodicalId":101180,"journal":{"name":"Spectrochimica Acta","volume":"22 7","pages":"Pages 1365-1369"},"PeriodicalIF":0.0,"publicationDate":"1966-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0371-1951(66)80040-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91682346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
The in-plane vibrations of azulene azulene的面内振动
Spectrochimica Acta Pub Date : 1966-07-01 DOI: 10.1016/0371-1951(66)80032-2
D. Steele
{"title":"The in-plane vibrations of azulene","authors":"D. Steele","doi":"10.1016/0371-1951(66)80032-2","DOIUrl":"10.1016/0371-1951(66)80032-2","url":null,"abstract":"<div><p>The in-plane vibrations of azulene have been computed using different force fields based on the benzene fields of S<span>rawford</span> <em>et al.</em> and of D<span>uinker</span> and M<span>ills</span>. The agreement between the two sets of results and obvious assignments is very satisfactory. An almost complete assignment of azulene is presented based on the calculations and previous experimental data. The results of calculation of the frequencies of per-deutero azulene are given but not discussed.</p></div>","PeriodicalId":101180,"journal":{"name":"Spectrochimica Acta","volume":"22 7","pages":"Pages 1275-1282"},"PeriodicalIF":0.0,"publicationDate":"1966-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0371-1951(66)80032-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74251971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 16
The vibrational spectra thiophene derivatives: the monohalogenothiophenes 噻吩衍生物的振动光谱:单卤基噻吩
Spectrochimica Acta Pub Date : 1966-07-01 DOI: 10.1016/0371-1951(66)80039-5
M. Horak , I.J. Hyams, E.R. Lippincott
{"title":"The vibrational spectra thiophene derivatives: the monohalogenothiophenes","authors":"M. Horak ,&nbsp;I.J. Hyams,&nbsp;E.R. Lippincott","doi":"10.1016/0371-1951(66)80039-5","DOIUrl":"https://doi.org/10.1016/0371-1951(66)80039-5","url":null,"abstract":"<div><p>An assignment of the vibrational spectra for 2-chloro-, 2-bromo- and 2-iodothiophene has been made, using infrared gas-phase data, Raman polarization data, and comparison with spectra of related molecules.</p></div>","PeriodicalId":101180,"journal":{"name":"Spectrochimica Acta","volume":"22 7","pages":"Pages 1355-1363"},"PeriodicalIF":0.0,"publicationDate":"1966-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0371-1951(66)80039-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91609484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 37
Spectres d'absorption infrarouge de borates de terres rares 稀土硼酸盐的红外吸收光谱
Spectrochimica Acta Pub Date : 1966-07-01 DOI: 10.1016/0371-1951(66)80023-1
J.P. Laperches , P. Tarte
{"title":"Spectres d'absorption infrarouge de borates de terres rares","authors":"J.P. Laperches ,&nbsp;P. Tarte","doi":"10.1016/0371-1951(66)80023-1","DOIUrl":"10.1016/0371-1951(66)80023-1","url":null,"abstract":"<div><p>The infra-red spectra of either trivalent cations or rare-earth borates related to the calcite, the aragonite and the vaterite structures have been studied in the 1500-250 cm<sup>−1</sup> region.</p><p>The infra-red pattern given by the rare-earth borates of the YBO<sub>3</sub> type cannot be reconciled with a three-fold co-ordination, but instead points to a four-fold co-ordination of boron, a fact in contradiction with the alleged vaterite structure of these borates.</p><p>The low-frequency spectrum is strongly structure-dependent, and is clearly influenced by the co-ordination number of the trivalent cation. The strong band observed in this region may be assigned to a cation—oxygen vibration, or possibly (for the calcite or aragonite-type borates) to a libration of the borate anion. Some significant discrepancies between our results and some data recently published in the literature are found to be related to spurious effects, such as the granulometry of the sample and possibly orientation effects.</p></div>","PeriodicalId":101180,"journal":{"name":"Spectrochimica Acta","volume":"22 7","pages":"Pages 1201-1210"},"PeriodicalIF":0.0,"publicationDate":"1966-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0371-1951(66)80023-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80678454","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 138
Infrared measurement of configuration and stereoregularity in polymers—II. Application to syndiotactic polypropylene 聚合物构型和立体规整性的红外测量。应用于共规聚丙烯
Spectrochimica Acta Pub Date : 1966-07-01 DOI: 10.1016/0371-1951(66)80026-7
J.L. Koenig, Lynn E. Wolfram, Jeanette G. Grasselli
{"title":"Infrared measurement of configuration and stereoregularity in polymers—II. Application to syndiotactic polypropylene","authors":"J.L. Koenig,&nbsp;Lynn E. Wolfram,&nbsp;Jeanette G. Grasselli","doi":"10.1016/0371-1951(66)80026-7","DOIUrl":"10.1016/0371-1951(66)80026-7","url":null,"abstract":"<div><p>Comparison of the spectra of syndiotactic, isotactic and atactic polypropylene illustrates the sensitivity of the infrared spectrum to changes in polymer systems resulting from stereoregularity. The bands are classified according to general types dependent on stereoisomer, degree of coupling due to stereosequence length, and the helical conformation.</p></div>","PeriodicalId":101180,"journal":{"name":"Spectrochimica Acta","volume":"22 7","pages":"Pages 1233-1242"},"PeriodicalIF":0.0,"publicationDate":"1966-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0371-1951(66)80026-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76048788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 18
The infra-red spectrum and structure of disulphur dinitride 二氮化二硫的红外光谱和结构
Spectrochimica Acta Pub Date : 1966-07-01 DOI: 10.1016/0371-1951(66)80041-3
J.R.W. Warn , D. Chapman
{"title":"The infra-red spectrum and structure of disulphur dinitride","authors":"J.R.W. Warn ,&nbsp;D. Chapman","doi":"10.1016/0371-1951(66)80041-3","DOIUrl":"https://doi.org/10.1016/0371-1951(66)80041-3","url":null,"abstract":"<div><p>Infra-red spectra of the molecule S<sub>2</sub>N<sub>2</sub> were obtained under a variety of conditions. Attempts to obtain Raman spectra were unsuccessful due to its extreme reactivity. The spectral evidence is consistent with a planar ring structure of <em>D</em><sub>2<em>h</em></sub> symmetry, with infra-red fundamentals at 474 (<em>B</em><sub>1<em>u</em></sub>), 663 (<em>B</em><sub>2<em>u</em></sub>) and 795 cm<sup>−1</sup> (<em>B</em><sub>3<em>u</em></sub>). The possibility of the molecule being a puckered ring, of <em>C</em><sub>2υ</sub> symmetry, cannot, however, be ruled out.</p></div>","PeriodicalId":101180,"journal":{"name":"Spectrochimica Acta","volume":"22 7","pages":"Pages 1371-1379"},"PeriodicalIF":0.0,"publicationDate":"1966-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0371-1951(66)80041-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91682345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 36
Near infra-red spectra of heterocyclic derivatives of pyrazolin-5-one 吡唑啉-5- 1杂环衍生物的近红外光谱
Spectrochimica Acta Pub Date : 1966-07-01 DOI: 10.1016/0371-1951(66)80044-9
C. Cogrossi
{"title":"Near infra-red spectra of heterocyclic derivatives of pyrazolin-5-one","authors":"C. Cogrossi","doi":"10.1016/0371-1951(66)80044-9","DOIUrl":"https://doi.org/10.1016/0371-1951(66)80044-9","url":null,"abstract":"","PeriodicalId":101180,"journal":{"name":"Spectrochimica Acta","volume":"22 7","pages":"Pages 1385-1388"},"PeriodicalIF":0.0,"publicationDate":"1966-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0371-1951(66)80044-9","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89997695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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