Synthesis of linear-shaped rhenium bipyridine polymers and their application for functional materials

我们成功地合成了一系列新的线性联吡啶铼聚合物，它含有多达21种稀土金属。以甲醇和乙腈为洗脱液，采用粒径排除色谱法分离线状联吡啶铼聚合物。该方法也可用于测定这些聚合物的分子量。稀土聚合物可作为光催化剂用于CO2还原。聚合物的光催化活性远高于相应的单核Re (I)配合物。阐明了光催化反应的机理。我们还合成了单向能量转移或光能量集中的Re(I)聚合物。首次合成并分离了环状Re(I)低聚物。

We successfully synthesized a new series of linear-shaped rhenium bipyridine polymers which have up to 21 Re(I) metals. A size-exclusion-chromatography with methanol and acetonitrile as eluent can be applied for isolation of the linear-shaped rhenium bipyridine polymers. This method can be also used for determination of the molecular weights of these polymers.The Re polymers can work as photocatalyst for CO2 reduction. The photocatalytic activities of the polymers were much higher than the corresponding mononuclear Re (I) complexes. Mechanism of the photocatalytic reactions has been clarified.We also synthesized Re(I) polymers where one-way energy transfer or concentration of photo energy occurs.Ring-shaped Re(I) oligomers were synthesized and isolated for the first time.