Electrochemically Driven Swinging of a Nitrobenzyl Pendant Arm in a Nickel Scorpionand Complex
作者:Carlo Ciarrocchi、Luigi Fabbrizzi、Maurizio Licchelli、Angelo Taglietti
DOI:10.1002/chem.202200462
日期:2022.5.6
A radical anion -NO2 .- is formed upon an electrochemically reversible one-electron reduction of the square-planar NiII complex of N-nitrobenzylcyclam. The -NO2 .- group goes to occupy an axial position of the metal ion, thus establishing a significant electronic interaction with the metal center. In particular, the ESR spectrum supports the occurrence of an electron transfer from -NO2 .- to the metal
N-硝基苄基环酰胺的方形平面 NiII 络合物在电化学可逆单电子还原时形成自由基阴离子 -NO2.-。-NO2 .- 基团占据金属离子的轴向位置,从而与金属中心建立显着的电子相互作用。特别是,ESR 光谱支持从-NO2.- 到金属的电子转移的发生,因此呈现出显着的 NiI 特征。再氧化时,硝基苄基侧链分离,NiII 复合物恢复,提供了一个完全可逆的氧化还原驱动的分子内运动的例子。