Transition metal complexes with pyrazine amine ligand: Preparation, structure and carbon dioxide copolymerization behavior
作者:Wen-Zhen Wang、Ya-Chao Xu、Li Wang、Lei-Lei Li、Li Xia、Xin-Gang Jia、Gene-Hsiang Lee、Shie-Ming Peng
DOI:10.1016/j.molstruc.2019.05.013
日期:2019.10
for the synthesis of propylene carbonate from propylene oxide and carbon dioxide were studied. The results show that all of them showed excellent catalytic activities with TOF as high as 2104 h-1, 2824 h-1 and 2605 h-1, respectively. Complex 2 that exhibit higher catalytic activity was taken to explore the influence of time, pressure and temperature to optimize the reaction condition in detail.
摘要 合成了 [Fe(L)2](ClO4)2 (1)、[Ni(L)2](ClO4)2 (2) 和 [Co(L)2](ClO4)2 (3) 三种配合物N,N'-(4-methylpyridin-2-yl)pyrazine-2,6-diamine (L) 与 Fe(ClO4)2·6H2O、(Ni(ClO4)2·6H2O 或 Co(ClO4)2 的反应) ·6H2O) 分别在室温下。通过元素分析、红外光谱和单晶 X 射线衍射对它们进行了表征。研究了该配合物对环氧丙烷和二氧化碳合成碳酸亚丙酯的催化行为。结果表明,它们均表现出优异的催化活性,TOF 分别高达 2104 h-1、2824 h-1 和 2605 h-1。采用具有较高催化活性的配合物2,探索时间、压力和温度对反应条件的影响,优化反应条件。