乙酸丙酮氧钒络合物在Y型沸石上有三种不同的ESR波谱,提出了络合物在沸石笼中可能存在的三种构型,并利用测得的波谱参数计算出络合物的键参数和约化能级。在沸石上三种不同结构的络合物表现出不同的约化能级△E。当双齿配体在第六位置上取代了单齿配体时表现出有最小的△E_(xz)值,可以设想较弱的第六配位键可能是具有较高氧化-还原催化活性的构型。 There are three different ESR spectra of vanadyl acetonate complex on Y zeolite. Three possible configurations of the complex in zeolite cage are proposed, and the bond of the complex is calculated using the measured spectral parameters Parameters and reduction level. The complexes of three different structures on zeolite exhibit different reduced levels of ΔE. When the bidentate ligand exhibits a minimal ΔE_ (xz) value when the monodentate ligand is substituted at the sixth position, it can be assumed that the weaker sixth coordinate bond may be a compound having a higher oxidation-reduction catalytic activity structure.