A series of pyridine and polypyridine-zinc complexes were synthesized, and their application in ε-caprolactone and l-lactide polymerization was studied. In ε-caprolactone polymerization, zinc complexes bearing 1,10-phenanthroline derivatives exhibited a higher polymerization rate than did diethyl zinc (2–10 times). In l-lactide polymerization, zinc complexes bearing 1,10-phenanthroline derivatives exhibited a considerably higher polymerization rate than did diethyl zinc (2–220 times). According to density functional theory results, the ortho-hydrogens of polypyridine ligand can co-activate the carbonyl group of monomers with zinc metal center to increase the catalytic activity of zinc catalysts.

合成了一系列吡啶和聚吡啶-锌络合物，并研究了它们在ε-己内酯和1-丙交酯聚合中的应用。在ε-己内酯聚合中，带有1,10-菲咯啉衍生物的锌络合物的聚合速率比二乙基锌高（2-10倍）。在l-丙交酯聚合反应中，带有1,10-菲咯啉衍生物的锌络合物的聚合速率比二乙基锌（2-220倍）高得多。根据密度泛函理论结果，聚吡啶配体的原氢可以与锌金属中心共同活化单体的羰基，从而提高锌催化剂的催化活性。