报道了带有吸电子基团(F,CF 3,C 6 F 5)的Corannulenes的合成和性质。邻苯二酚的直接氟化(C 20 H 10)用二氟化氙进行,X射线分析证实了产物的晶体结构。通过各种已建立的闭环反应,获得了新颖的三氟甲基化氢化萘,包括通用的4,9-二溴-1,2-双(三氟甲基)氢化萘。除了使用六氟丁炔通过狄尔斯-阿尔德反应(Diels-Alder reaction)构建前叉分子以形成1,2-二取代的Corannulenes来构建荧蒽外,还使用双(五氟苯基)乙炔作为亲二烯体。通过单晶X射线分析确定了三氟甲基化氢化萘的分子结构和晶体堆积,并将其与已知的溴化和三氟甲基化氢化萘酯进行了比较。
报道了带有吸电子基团(F,CF 3,C 6 F 5)的Corannulenes的合成和性质。邻苯二酚的直接氟化(C 20 H 10)用二氟化氙进行,X射线分析证实了产物的晶体结构。通过各种已建立的闭环反应,获得了新颖的三氟甲基化氢化萘,包括通用的4,9-二溴-1,2-双(三氟甲基)氢化萘。除了使用六氟丁炔通过狄尔斯-阿尔德反应(Diels-Alder reaction)构建前叉分子以形成1,2-二取代的Corannulenes来构建荧蒽外,还使用双(五氟苯基)乙炔作为亲二烯体。通过单晶X射线分析确定了三氟甲基化氢化萘的分子结构和晶体堆积,并将其与已知的溴化和三氟甲基化氢化萘酯进行了比较。
Herein we report general methods allowing the synthesis of various perfluoroalkylated corannulenes with a specific substitution pattern. Variable temperature NMR spectroscopic investigations revealed dynamic behavior which was analyzed by line shape analysis. The activation parameters of these dynamic processes were determined. For a tetrasubstituted compound it was possible to observe through space
Electronic Properties of Trifluoromethylated Corannulenes
作者:Bernd M. Schmidt、Shu Seki、Berit Topolinski、Kei Ohkubo、Shunichi Fukuzumi、Hidehiro Sakurai、Dieter Lentz
DOI:10.1002/anie.201205757
日期:2012.11.5
With great stacking comes great conductivity: Trifluoromethylatedcorannulenes are unexpectedly strong electron acceptors in solution. Even a polycrystalline film of 1,2‐(F3C)2‐corannulene (top structure and curve in the plot) exhibits conductivity three orders of magnitude higher than that of pristine corannulene!