Quantitative UO bond activation in uranyl complexes <i>via</i> silyl radical transfer
作者:Leyla R. Valerio、Brett M. Hakey、William W. Brennessel、Ellen M. Matson
DOI:10.1039/d2cc04424b
日期:——
Reductive silylation of the uranyl dication with 1,4-bis(trimethylsilyl)dihydropyrazine, or “Mashima's reagent”, is detailed. The reagent simultaneously delivers silylium ions and electrons to multiple uranyl complexes, i.e. a pyridine dipyrrolide uranyl complex and a common uranyl-containing starting material, UO2Cl2(OPPh3)2. This reaction results in quantitative activation of thermodynamically robust
详细介绍了用 1,4-双(三甲基甲硅烷基)二氢吡嗪或“Mashima 试剂”对铀酰二阳离子进行还原甲硅烷基化。该试剂同时将甲硅烷离子和电子传递给多个铀酰配合物,即吡啶二吡咯化合物铀酰配合物和常见的含铀酰起始材料UO 2 Cl 2 (OPPh 3 ) 2。该反应导致热力学稳健的 U O 键的定量活化。用 Mashima 的试剂对环境持久的actinyl 物种进行还原功能化被视为核废料修复的有前景的解决方案。