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采用水做溶剂,用2,3,5-吡啶三酸做配体和重稀土铽、镝、铒、镱、镥、钇六种稀土元素的氯化物在常温下反应合成了六种重稀土的配合物。通过EDTA络合滴定分析,确定了六种配合物中稀土离子含量;并对配合物进行了熔点测定、红外光谱测试,并测试了铽和镝配合物的光致发光性质,结果表明,铽和镝配合物在紫外光的激发下具有良好的发光性质。
Using water as solvent, 2,3,5-pyridinetricarboxylic acid as ligand and heavy rare earth terbium, dysprosium, erbium, ytterbium, gallium, yttrium six kinds of rare earth elements chloride were synthesized at room temperature six kinds of heavy rare earth Complex. The contents of rare earth ions in the six complexes were determined by EDTA complexometric titration. The melting point and infrared spectra of the complexes were measured and the photoluminescence properties of terbium and dysprosium complexes were tested. The results showed that the terbium and Dysprosium complexes have good luminescent properties under the excitation of UV light.