transitions, and support the Ni(II) high-spin ground state assignments, while suggesting that the SOMOs have mainly ligand character. The electrochemical behaviour of the complexes is consistent with irreversible = 1 redox processes around −1.0 V, formally assignable to the Ni(II)/Ni(I) couple. Ligand reduction and large current augmentation due to catalytic Hproduction are also observed in this region
设计了一系列新的含六齿
硫醚
配体。用它们合成的五种
镍(II)双离子伪八面体配合物显示出与理想几何形状不同程度的偏差。电子吸收光谱证实了高自旋八面体 [NiNS] 发色团的形成,其具有 Ni(II)
硫醚络合物典型的大共价键。 DFT 计算有助于分配
螯合剂跃迁,并支持 Ni(II) 高自旋基态分配,同时表明 SOMO 主要具有
配体特征。配合物的电
化学行为与 -1.0 V 左右的不可逆 = 1 氧化还原过程一致,正式可归因于 Ni(II)/Ni(I) 电对。在该区域还观察到由于催化产氢而导致的
配体还原和大电流增强