高分子希夫碱金属配合物活性中心对催化活化分子氧性能的影响

Influence of Metal Center in Polymer-Bound Schiff Base Metal Complexes in Catalytic Activation of Dioxygen

以交联聚苯乙烯担载酪氨酸希夫碱为配体,制备了其锰、钴、铜高分子金属配合物,分别以环己烯、异丙苯和乙苯为底物,氧气为氧源,研究了温和条件下不同金属中心活化分子氧能力,发现高分子担载铜金属配合物的催化活化分子氧能力最强,对反应机理进行了探讨.

A serious of polymer-bound tyrosine Schiff base manganese （Ⅱ）, cobalt （Ⅱ） and copper （Ⅱ） complexes were prepared. Their catalytic properties in activation of dioxygen were investigated in mild condition when cyclohexene, cumene and ethylbenzene were used as substrates. It is found the polymer Schiff base copper complex is the best one in catalytic oxidation of above substrates. The catalytic mechanism was also discussed.