三（全氟代三氟甲基）硼烷-A 硼路易斯超强酸。
Tris(perfluorotolyl)borane-A Boron Lewis Superacid.
机构信息
Lehrstuhl für Anorganische Chemie und Strukturchemie and Centrum für Molekulare Materialien CM2, Fakultät für Chemie, Universität Bielefeld, Universitätsstrasse 25, 33615, Bielefeld, Germany.
出版信息
Angew Chem Int Ed Engl. 2017 Jul 10;56(29):8578-8582. doi: 10.1002/anie.201704097. Epub 2017 Jun 9.
Tris[tetrafluoro-4-(trifluoromethyl)phenyl]borane (BTolF) was prepared by treating boron tribromide with tetrameric F CC F -Cu . The F CC F -Cu was generated from F CC F MgBr and copper(I) bromide. Lewis acidities of BTolF evaluated by the Gutmann-Beckett method and calculated fluoride-ion affinities are 9 and 10 %, respectively, higher than that of tris(pentafluorophenyl)borane (BCF) and even higher than that of SbF . The molecular structures of BTolF and BCF were determined by gas-phase electron diffraction, that of BTolF also by single-crystal X-ray diffraction.
三[四氟-4-(三氟甲基)苯基]硼烷（BTolF）通过三溴化硼与四聚体 FCCF-Cu 反应制得。FCCF-Cu 由 FCCF-MgBr 和溴化亚铜生成。通过 Gutmann-Beckett 方法评估的 BTolF 的路易斯酸度和计算得到的氟离子亲合能分别比三（五氟苯基）硼烷（BCF）高 9%和 10%，甚至比 SbF 还高。BTolF 和 BCF 的分子结构通过气相电子衍射确定，BTolF 的分子结构还通过单晶 X 射线衍射确定。
Zotero 插件