Construction of highly active reaction fields produced by electrochemical oxidation of platinum complexes bearing a cyclometalated ligand

目的是通过双电子氧化将Pt（II）与苯二酰胺（bda）衍生物的配合物转化为d^6配合物，从而构建高活性的反应场。苯二酰胺衍生物具有可逆的两步氧化还原行为。环金属化配体作为辅助配体，使bda配体的氧化电位负移。配合物的结构从正方形平面（Pt（II））到八面体（Pt（IV））的变化被认为是由配合物的进一步氧化促进的。通过电化学测量观察到了这种变化，这一结果有力地表明了高活性反应场的构建。

Construction of the highly active reaction field by converting the Pt(II) complex with benzenediamide (bda) derivatives, which shows characteristic reversible two-step redox behavior, as a ligand into the d^6 complex by two-electron oxidation was aimed. The oxidation potential of the bda ligand was shifted negatively by using the cyclomatallated ligand as an auxiliary ligand. The structural change of the complex from square-planar (Pt(II)) to octahedral (Pt(IV)) was considered to be promoted by further oxidation of the complex. The change was observed by the electrochemical measurement, and the result strongly suggested the construction of the highly active reaction field.