2,6-双(1,2,3-三唑-4-基)吡啶钌(Ⅱ)的合成及其光催化性能的研究

Study on the synthesis and photocatalytic activity of 2,6-bis(1,2,3-triazol-4-yl)pyridine Ruthenium(Ⅱ)

基于过渡金属的光催化体系,如钌(Ⅱ)或铱(Ⅲ)络合物,是一类具有广阔应用前景的光催化剂。本文中,我们报道一种新型钌(Ⅱ)络合物2,6-双(1,2,3-三唑-4-基)吡啶钌(Ⅱ)的合成,并通过核磁氢谱和碳谱证实其结构。该化合物在硫代氨基甲酸酯的光合成中表现出良好的催化活性,底物兼容性好,产物收率在65%~82%之间。根据一系列的控制实验结果,我们阐述2,6-双(1,2,3-三唑-4-基)吡啶钌(Ⅱ)光催化硫醇和异氰偶联生成硫代氨基甲酸酯的反应机理。

Transition metal based photocatalysts,such as ruthenium(Ⅱ)or iridium(Ⅲ)complexes,are promising photocatalysts.We reported the synthesis of a new ruthenium(Ⅱ)complex,2,6-bis(1,2,3-triazol-4-yl)pyridine ruthenium(Ⅱ),and confirmed its structure by 1H NMR and 13 C NMR.The compound showed good catalytic activity in the photosynthesis of thiocarbamates with good substrate compatibility,and the yields were between 65%-82%.Based on a series of control experimental results,we described the reaction mechanism of photocatalytic coupling of thiols and isocyaides toward thiocarbamate over 2,6-bis(1,2,3-triazol-4-yl)pyridine ruthenium(Ⅱ).