作者:Sebastian Steiner、Alexander Nitzer、Christoph Jessen、Andreas J. Kornath
DOI:10.1002/zaac.202400013
日期:2024.4.16
species of dichloroacetyl fluoride is formed in the binary superacidic systems HF/MF5 and DF/MF5 (M=As, Sb) as hexafluoridoarsenates and hexafluoridoantimonates. With an excess of the strong Lewis acid SbF5 dichloroacetyl fluoride reacts under the formation of the oxonium salt [CCl2HCF2OX2][SbF6] in the superacidic system XF/SbF5 (X=H, D) after HF- or DF-addition, respectively. The colorless salts were
在超强酸 HF/ M F 5和 DF/ MF 5 ( M = As, Sb)中研究了二氯乙酰氟。二氯乙酰氟的O-半质子化物质在二元超强酸体系HF/ MF 5和DF/ MF 5 ( M = As、Sb)中形成为六氟砷酸盐和六氟锑酸盐。二氯乙酰氟与过量的强路易斯酸SbF 5在超强酸性体系X F/SbF 5 ( X =H,D)下反应生成氧鎓盐[CCl 2 HCF 2 O X 2 ][SbF 6 ]分别添加 HF 或 DF。通过低温振动光谱、核磁共振光谱和单晶 X 射线衍射对无色盐进行了表征。[CCl 2 HC(OH)F][(CCl 2 HCOF) 2 H][SbF 6 ][Sb 2 F 11 ]和[CCl 2 HCF 2 OH 2 ][SbF 6 ]在单斜空间群P 2 1中结晶/c 和P 2 1 /m,分别每个单元格有两个公式单元。氧鎓盐的晶体结构显示出强的 O(−H)⋅⋅⋅F 氢键和强的 F⋅⋅⋅F