Activation of NO and Small Molecules on Dinuclear Ruthenium Complexes

我们已经实现了一个基于双核Ru络合物的逐步NO还原循环。这个循环意味着使用两个电子和两个质子将两个NO分子转化为N2O和H2O。为了提高循环中每一步的转化效率，我们研究了两个Ru原子之间的桥联配体的作用以及包括中间体在内的反应机理。此外，我们还发现光诱导消除了N2O，而不是质子。我们还成功地在双核Ru配合物上排列了两个相邻的配体，包括一个NO+配体。从它们的还原反应中，我们分离出了双核配合物上的半弯自由基NO配体。

We have achieved a stepwise NO reduction cycle based on a dinuclear ruthenium complex. This cycle means conversion of two NO molecules to a N2O and a H2O using two electrons and two protons. To increase the conversion efficiency of each step in the cycle, we investigated the effect of the bridging ligands between two ruthenium atoms and the reaction mechanism including the intermediates. Moreover, light-induced elimination of N2O, instead of proton, was found in high yield.We also succeeded in arranging two neighboring ligands including a NO+ ligand on the dinuclear ruthenium complexes. From their reduction reactions, we isolated a half-bent radical NO ligand on the dinuclear complexes.