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本工作对具有三明治结构的双 [2 ,3 ,9,10 ,16,17,2 3 ,2 4 八 (对甲氧基苯氧基 ) ]酞菁铕在不同压力下的光谱行为进行了研究 .结果表明 ,压力对配合物的Q带吸收具有明显的调制作用 ,随着压力的增加 ,对应Q带吸收的LUMO和SUMO能级降低 .由于LUMO和SUMO (SecondUnoccupiedMolecularOrbit)能级的降低 ,使得Soret带吸收后到达的高能级与LUMO和SUMO能级间隔增加 ,减慢了从高能级的无辐射过程 .随着压力的增加 ,对应于Soret带吸收的荧光强度 (4 10nm)大大增强 .
In this work, the spectral behavior of europium with bis [2,3,9,10,16,17,23,2,48 (p-methoxyphenoxy)] phthalocyanine with a sandwich structure under different pressures was studied The results show that the pressure has a significant modulating effect on the Q band absorption of the complex, and as the pressure increases, the LUMO and SUMO energy levels corresponding to the absorption of Q band decrease. Due to the decrease of the energy levels of LUMO and SUMO (Second Uncoupied Molecular Orbit), Soret The higher energy level with absorption and the increase in LUMO and SUMO energy levels slowed the non-radiative process from higher energy levels, and the fluorescence intensities corresponding to Soret absorption (4 10nm) increased significantly with increasing pressure.