作者:Thiago C. Correra、José M. Riveros
DOI:10.1002/anie.201203970
日期:2012.8.20
Exchange Me for a fluorine: Trimethylsiloxide ions in the presence of NF3 in the gas phase undergo an unusual and sequential metathesis‐type reaction wherein methyl groups are exchanged for fluorine. Theoretical calculations suggest that the reaction proceeds by a three‐step internal‐nucleophilic‐displacement mechanism which features a pentacoordinated siliconate species (see picture) as a transition
用我交换氟:在气相中存在NF 3的三甲基氧化硅离子经历了不寻常的顺序复分解型反应,其中甲基被氟交换。理论计算表明,该反应是通过三步内部亲核置换机制进行的,该机制以五配位硅酸酯物质(参见图片)为过渡态而非中间体为特征。