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在无水乙醇中,以水杨酸(Hsal)和邻菲口罗啉(phen)为配体,不同摩尔比铕钆离子为中心体,合成了一系列组成为NaEuxGd1-x(sal)4(phen)2(x=0.1~1.0)的固体配合物。IR光谱表明,水杨酸的酚羟基没有参与配位,羧基以桥联方式与钠和铕或钆原子配位;UV光谱显示,配合物中phen与稀土离子之间的能量传递是主要过程,配合物的最大吸收与phen相比略有红移;FS光谱表明,在该系列配合物中,不仅配体可以将吸收的能量传递给铕离子,使其发光,而且不发光的钆配合物也可将其吸收的能量传递给铕离子,增强铕的发光强度。
In absolute ethanol, salicylic acid (Hsal) and phenanthroline (phen) ligands, different molar ratios of europium gadolinium ions as the center, a series of synthesis of NaEuxGd1-x (sal) 4 phen) 2 (x = 0.1 to 1.0). The IR spectra showed that the phenolic hydroxyl groups of salicylic acid did not participate in the coordination and the carboxyl groups coordinated with sodium and europium or gadolinium atoms through the bridge mode. The UV spectra showed that the energy transfer between phen and rare earth ions in the complex was the main process, The maximum absorption of the complex shows a slight red shift compared with that of phen. The FS spectra show that not only the ligand can transfer the absorbed energy to the europium ions, but also emit light, and the non-luminescent gadolinium complexes The energy absorbed by it can be transferred to the europium ion to enhance the luminescence intensity of europium.