Water-Soluble Ionic Palladium Complexes: Effect of Pendant Ionic Groups on Palladium Nanoparticles and Suzuki-Miyaura Reaction in Neat Water
作者:Liuyi Li、Tao Wu、Jinyun Wang、Ruihu Wang
DOI:10.1002/cplu.201300374
日期:2014.2
Suzuki-Miyaura cross-coupling reaction, and high catalytic activities of aryl bromides and chlorides are achieved in neat water. The mercury drop test, poison experiments, and TEM analysis are used to demonstrate the formation of palladium nanoparticles (NPs) after the catalytic reaction. The effects of pendant ionic groups in L1-L3 on the catalytic activities and structures of the palladium NPs are disclosed
通过2,2'-联吡啶胺的烷基化和季铵化反应,可以轻松合成三个离子型氮原子螯合配体(L1-L3)。通过使用密度泛函理论计算来实现其阳离子的电荷分布和自然键轨道分析。通过使用铃木-宫浦(Suzuki-Miyaura)交叉偶联反应初步评估了它们的水溶性钯配合物的催化性能,并在纯净水中实现了芳基溴化物和氯化物的高催化活性。汞滴试验,毒物实验和TEM分析用于证明催化反应后钯纳米颗粒(NPs)的形成。公开了L1-L3中的离子侧基对钯NPs的催化活性和结构的影响。这些NP在水中稳定数周。它们通过2,2'-联吡啶氨基与钯NP表面的螯合配位与L1-L3中离子基团的静电排斥之间的协同相互作用而稳定。