作者：Li Liu a,b, Xu Zhang a,b, Heng Liu b, Xuequan Zhang b, Qihu Qin c, Guangping Sun a,*, Hexin Zhang
关键字：Cationic; Cobalt compounds; 1,3-Butadiene; Polybutadiene; Cis-1,4
论文来源：期刊
具体来源：Journal of Saudi Chemical Society (2017) 21, S187–S192
发表时间：2017年

A series of cationic cobalt-based compounds bearing different neutral N-bearing ligands (1,10-phenanthroline, bipyridine, benzimidazole, terpyridine) and anionic ligands (trifluoromethanesulfonate, methanesulfonate) were synthesized and the simple compound, Co(Phen)2Cl2, was also prepared as a reference compound. All the compounds were characterized along with infrared spectra analysis and some of them were further confirmed by single crystal X-ray crystallographic analysis. Upon activation with ethylaluminum sesquichloride, these cationic cobalt(II) compounds showed high catalytic activities for butadiene polymerization. The detailed investigations were carried out to disclose the influence of various polymerization conditions, sterical and electronic parameters of the ligands on their performing activities of the compounds.