Organometallic Reactivity of [Silver(I)(Pyridine‐Containing Ligand)] Complexes Relevant to Catalysis
作者:Tommaso Pedrazzini、Paolo Pirovano、Monica Dell'Acqua、Fabio Ragaini、Pasquale Illiano、Piero Macchi、Giorgio Abbiati、Alessandro Caselli
DOI:10.1002/ejic.201500771
日期:2015.10
Silver(I) complexes of pyiridine-containing macrocyclic ligands (Pc-L) have already been demonstrated as active catalysts for some domino and multicomponent reactions. Here, we report new chiral [AgI(Pc-L*)] cationic complexes that have been synthesized and fully characterized, including structural determination by single-crystal X-ray diffraction. The complexes show a rich coordination chemistry,
含吡啶的大环配体 (Pc-L) 的银 (I) 配合物已被证明是一些多米诺骨牌和多组分反应的活性催化剂。在这里,我们报告了新的手性 [AgI(Pc-L*)] 阳离子配合物,这些配合物已经合成并完全表征,包括通过单晶 X 射线衍射进行结构测定。这些配合物显示出丰富的配位化学,证明了银的 σ-亲(醇和腈配位)和 π-亲(炔配位)性质。已通过NMR光谱实验在溶液中观察到银上配体的萘基悬臂的η2配位模式。2D NMR 光谱显示存在由旋转过程产生的正交叉峰,旋转速率通过使用 2D 交换光谱 (EXSY) 测量。