This way and that: Ruthenium complexes with asymmetric bidentate phosphine ligands bearing two substituents that differ in size (green spheres) produce a totally alternating copolymer of norbornene and cyclooctene by ring‐opening metathesis polymerization (ROMP). The E/Z ratio can be influenced systematically by changing the bulkiness of the aryl sulfonate ligand (blue rectangles).
这样的方式:具有不对称双齿
膦配体的
钌配合物带有两个大小不同的取代基(绿色球体),通过开环复分解聚合(ROMP)生成
降冰片烯和环
辛烯的完全交替的共聚物。的E / Z 比率可以系统通过改变芳基
磺酸盐配位体(蓝色矩形)的体积的影响。