以 η6-苯乙烯三羰基铬为原料 ,通过多步配体取代反应 ,合成了金属有机单体 η6-苯乙烯二羰基(三苯基膦 )铬配合物 ,经元素分析 ,IR和 1H -NMR进行了结构分析。研究了它在自由基引发下的聚合反应 ,结果表明强电子给体三苯基膦取代羰基配体可以改善配合物的聚合活性 The η6-styryl tricarbonyl chromium was used as the starting material to synthesize the metal-organic monomer η6-styrene dicarbonyl (triphenylphosphine) chrome complex by multi-step ligand substitution reaction. The elemental analysis, IR and 1H-NMR Structural analysis was carried out. It was studied in the free radical initiated polymerization, the results show that the strong electron donor triphenylphosphine substituted carbonyl ligand can improve the polymerization activity of the complex