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结构的含21个Re（I）金属的联吡啶聚合物。用甲醇和乙腈作为洗脱剂的尺寸排阻色谱法可用于分离线性形状的联吡啶聚合物。该方法也可用于测定这些聚合物的分子量，并可作为光催化剂用于CO2的还原。聚合物的光催化活性远高于相应的单核Re（I）配合物。我们还合成了具有单向能量转移或光能集中的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.