膦配体对固载化钌基配合物催化超临界二氧化碳加氢反应的影响

Effect of phosphine ligands on the supercritical carbon dioxide hydrogenation performance catalyzed by immobilized Ru complexes

将钌基配合物催化剂固载于氯甲基化后的交联聚苯乙烯树脂上,催化超临界二氧化碳加氢反应。结果表明,多种类型的膦配体均能够与过渡金属钌原子配位催化二氧化碳加氢反应,但由于各种膦配体物化性质的差异,形成的活性物种具有不同的结构和催化性能。双齿膦配体形成的钌基配合物的加氢活性均高于单齿膦配体。

The hydrogenation reaction of supercritical carbon dioxide to formic acid and its derivatives was catalyzed by Ru complexes catalyst immobilized on chloromethylated cross-linked polystyrene resin. The results showed that some types of phosphine ligands could coordinate with transition metal Ru atom and have good hydrogenation ability. Due to the differences in physicochemical properties of these variety phosphine ligands, the active species formed in-situ exhibited very different reaction performance. The hy- drogenation activity of Ru complexes formed with bidentate phosphine ligands were higher than those with monodentate phosphine ligand.