{"title":"4,7-二-(2-噻吩基)-4,5,6,7-四氢苯并[b]噻吩的晶体和分子结构","authors":"D. M. Hawley, G. Ferguson","doi":"10.1039/J29710000843","DOIUrl":null,"url":null,"abstract":"The crystal structure of the title compound, the ‘pentamer’ fraction of the acid-catalysed polymerisation of thiophen, has been determined by direct methods from three-dimensional photographic data. The crystals are monoclinic, space group, P21/c(C52h), with a= 14·13, b= 7·68, c= 13·78 A and β= 104·1°. The disordered structure has been refined by least-squares methods to R 0·111 over 2307 independent reflexions. The cyclohexene ring adopts the half-chair conformation with the thienyl substituents in a cis-configuration.","PeriodicalId":17268,"journal":{"name":"Journal of The Chemical Society B: Physical Organic","volume":"34 1","pages":"843-846"},"PeriodicalIF":0.0000,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Crystal and molecular structure of 4,7-di-(2-thienyl)-4,5,6,7-tetrahydrobenzo[b]thiophen\",\"authors\":\"D. M. Hawley, G. Ferguson\",\"doi\":\"10.1039/J29710000843\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The crystal structure of the title compound, the ‘pentamer’ fraction of the acid-catalysed polymerisation of thiophen, has been determined by direct methods from three-dimensional photographic data. The crystals are monoclinic, space group, P21/c(C52h), with a= 14·13, b= 7·68, c= 13·78 A and β= 104·1°. The disordered structure has been refined by least-squares methods to R 0·111 over 2307 independent reflexions. The cyclohexene ring adopts the half-chair conformation with the thienyl substituents in a cis-configuration.\",\"PeriodicalId\":17268,\"journal\":{\"name\":\"Journal of The Chemical Society B: Physical Organic\",\"volume\":\"34 1\",\"pages\":\"843-846\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1971-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of The Chemical Society B: Physical Organic\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1039/J29710000843\",\"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 B: Physical Organic","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1039/J29710000843","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Crystal and molecular structure of 4,7-di-(2-thienyl)-4,5,6,7-tetrahydrobenzo[b]thiophen
The crystal structure of the title compound, the ‘pentamer’ fraction of the acid-catalysed polymerisation of thiophen, has been determined by direct methods from three-dimensional photographic data. The crystals are monoclinic, space group, P21/c(C52h), with a= 14·13, b= 7·68, c= 13·78 A and β= 104·1°. The disordered structure has been refined by least-squares methods to R 0·111 over 2307 independent reflexions. The cyclohexene ring adopts the half-chair conformation with the thienyl substituents in a cis-configuration.
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