沸石MCM-22中Fesalen络合物的合成及性能研究

摘要

Salen[ N,N＇-ethylenebis(salicylideneamino)] iron( Ⅱ ) complexes[ hereafter referred to as Fesalen] have been syn thesizet within the "bottle" cavity of dehydrated zeolite MCM-22 by the flexible method and characterized by physicochemical methods. The results have shown that the Fesalen complexes have stoichiometrcal formed in zeolite MCM-22. The oxidation property of the Fesalen in zeolite MCM-22 was reported.%具有生物活性的铁Salen络合物通过自由配体法在高硅沸石MCM-22的"瓶"状超笼中合成，该笼具有1.82nm的高度，0.71 nm的直径，中间10元环开孔，顶部和底部为6元环，Salen配体由10元环窗口扩散进入，与笼内的铁离子络合，并以化学计量比例形成体积较大的Fesalen络合物，从而不能从10元环窗口中逃逸出去。物理化学方法测试表明，笼内的Fesalen络合物具有同自由Fesalen络合物同样的性质，只是由于笼的本征结构使络合物发生空间变形。在MCM-22沸石笼中的Fesalen络合物同样具有对烷烃的氧化性能。