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合成了三种不同取代的6-苯并咪唑基-2-芳亚胺乙基吡啶化合物3a~3c及相应的锌配合物6-苯并咪唑基-2-芳亚胺乙基吡啶氯化锌4a~4c,产物经过核磁共振、红外光谱及元素分析等方法进行了表征,其中配合物4a的分子结构得到X射线单晶衍射的进一步确证.4a的晶胞参数为a=9.2524(17),b=16.958(3),c=16.661(3),β=103.089(3)°,属于单斜晶系,P2(1)/n空间群.所得锌配合物对苯乙烯聚合具有中等催化活性,探讨了影响催化活性的各种因素,活性最高可达1.33×105g mol-1(Zn)h-1.采用凝胶渗透色谱、核磁共振谱、红外光谱、X射线粉末衍射等表征了所得聚苯乙烯的相对分子量(Mn)为1~2万,分子量分布较窄(Mw/Mn<1.8),属于无规聚苯乙烯.
Three different substituted 6-benzimidazolyl-2-aryliminoethyl pyridine compounds 3a ~ 3c and the corresponding zinc complexes were synthesized. 6-Benzimidazolyl-2-arylimine ethyl pyridine zinc chloride 4a ~ 4c.The products were characterized by 1H NMR, IR and elemental analysis, and the molecular structure of complex 4a was further confirmed by X-ray single crystal diffraction.The unit cell parameters of 4a were a = 9.2524 (17), b = 16.958 (3), c = 16.661 (3), β = 103.089 (3) ° belong to the monoclinic space group P2 (1) / n.The zinc complexes obtained have moderate catalytic activities for styrene polymerization, The factors affecting the catalytic activity were discussed, with the highest activity of 1.33 × 105g mol-1 (Zn) h-1. The results of GPC, 1HNMR, XRD, Ethylene has a relative molecular weight (Mn) of 1 to 20,000 and a narrow molecular weight distribution (Mw / Mn <1.8), belonging to random polystyrene.