College of Chemical Engineering and Materials, Handan University, Handan, 056005, China.
School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China.
Macromol Rapid Commun. 2024 Nov;45(22):e2400486. doi: 10.1002/marc.202400486. Epub 2024 Aug 14.
A series of binuclear rare-earth metal complexes based on the ligands containing bis(phosphinophenyl)amido-PNP unit are successfully synthesized. All the ligands and the corresponding binuclear complexes are fully characterized by NMR spectra (H, C, and P). In conjunction with [PhC][B(CF)], all the binuclear complexes exhibited high catalytic activity and high cis-1,4-selectivity (>99%) toward the polymerization of 1,3-conjugated dienes (isoprene, β-myrcene and β-farnesene) with excellent livingness at room temperature or even 80 °C.
成功合成了一系列基于含有双(膦基苯基)酰胺基-PNP 单元的配体的双核稀土金属配合物。所有的配体和相应的双核配合物都通过核磁共振谱（氢、碳和磷）进行了充分的表征。结合[PhC][B(CF)]，所有双核配合物在室温甚至 80°C 下对 1,3-共轭二烯（异戊二烯、β-月桂烯和β-法呢烯）的聚合表现出高催化活性和高顺式-1,4-选择性（>99%）。
