{"title":"Chiral crystallization of anti-dodecaisopropyltricyclo-[4.2.00.0(2,5)] octasilane.","authors":"R. Tanaka, S. Kyushin, M. Unno, H. Matsumoto","doi":"10.1080/10242430212882","DOIUrl":null,"url":null,"abstract":"The aim of this article is to describe the results of our investigation on the chiral crystallization of anti-tricyclic ladder polysilane, anti-dodecaisopropyltricyclo [4.2.0.0(2,5)] octasilane (1). In solid state, the silicon framework of 1 adopts twisted conformation in which the Si4 rings are puckered in the same direction. Crystallization of 1 afforded a large conglomerate crystal in high yield. X-ray crystallography revealed that the crystal consists of either right-handed (P) or left-handed (M) molecules. The ultraviolet and circular dichroism spectra of the chiral crystals of 1 reveal two absorption bands in the 400-250 nm region.","PeriodicalId":11752,"journal":{"name":"Enantiomer","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2002-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Enantiomer","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1080/10242430212882","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
The aim of this article is to describe the results of our investigation on the chiral crystallization of anti-tricyclic ladder polysilane, anti-dodecaisopropyltricyclo [4.2.0.0(2,5)] octasilane (1). In solid state, the silicon framework of 1 adopts twisted conformation in which the Si4 rings are puckered in the same direction. Crystallization of 1 afforded a large conglomerate crystal in high yield. X-ray crystallography revealed that the crystal consists of either right-handed (P) or left-handed (M) molecules. The ultraviolet and circular dichroism spectra of the chiral crystals of 1 reveal two absorption bands in the 400-250 nm region.
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