{"title":"对称分叉氢键。第一部分:双-(β-酰基乙烯基)胺","authors":"J. Dąbrowski, Z. Świstun","doi":"10.1039/J29710000818","DOIUrl":null,"url":null,"abstract":"Symmetrically bifurcate three-centre hydrogen bonding, N–[graphic omitted], was found in the symmetrical cis,cis-form of several bis-(β-acylvinyl)amines, [R1C(O)CR2CR3]2NH. The alternative cis,trans–s-cis and cis,trans–s-trans-structures were also detected in amounts depending on the size of the R-alkyl substituent, the solvent, and its concentration. The data do not prove conclusively that the hydrogen bond is truly symmetrically forked.","PeriodicalId":17268,"journal":{"name":"Journal of The Chemical Society B: Physical Organic","volume":"27 6","pages":"818-821"},"PeriodicalIF":0.0000,"publicationDate":"1971-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Symmetrically bifurcate hydrogen bonding. Part I. Bis-(β-acylvinyl)-amines\",\"authors\":\"J. Dąbrowski, Z. Świstun\",\"doi\":\"10.1039/J29710000818\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Symmetrically bifurcate three-centre hydrogen bonding, N–[graphic omitted], was found in the symmetrical cis,cis-form of several bis-(β-acylvinyl)amines, [R1C(O)CR2CR3]2NH. The alternative cis,trans–s-cis and cis,trans–s-trans-structures were also detected in amounts depending on the size of the R-alkyl substituent, the solvent, and its concentration. The data do not prove conclusively that the hydrogen bond is truly symmetrically forked.\",\"PeriodicalId\":17268,\"journal\":{\"name\":\"Journal of The Chemical Society B: Physical Organic\",\"volume\":\"27 6\",\"pages\":\"818-821\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1971-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of The Chemical Society B: Physical Organic\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1039/J29710000818\",\"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/J29710000818","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Symmetrically bifurcate hydrogen bonding. Part I. Bis-(β-acylvinyl)-amines
Symmetrically bifurcate three-centre hydrogen bonding, N–[graphic omitted], was found in the symmetrical cis,cis-form of several bis-(β-acylvinyl)amines, [R1C(O)CR2CR3]2NH. The alternative cis,trans–s-cis and cis,trans–s-trans-structures were also detected in amounts depending on the size of the R-alkyl substituent, the solvent, and its concentration. The data do not prove conclusively that the hydrogen bond is truly symmetrically forked.
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