摘要
醋酸铕、醋酸铽分别与乙酰丙酮在60°C水浴下加热回流,生成两种稀土β-二酮配合物,即乙酰丙酮铕(Eu(acac)_3?3H_2O)和乙酰丙酮铽(Tb(acac)_3?3H_2O),在紫外灯下观察配合物发光现象,乙酰丙酮铕在紫外灯下显暗红色,乙酰丙酮铽在紫外灯下显亮绿色。红外分析结果与理论相吻合,荧光分析表明它们是较好的荧光材料,热分析结果说明它们的热稳定性相对较高。
Eu(Ⅲ) acetate and Tb(Ⅲ) acetate reacted with acetyl acetone at about 60 °C to synthesize two different rare earth β-diketone complexes. With the UV light illumination, the fluorescence of Eu(acac)_3?3H_2O is dark red, while the Tb(acac)_3?3H_2O is bright green. Results from infrared spectra agreed with the theoretical prediction. Through fluorescence analysis, we found these complexes are relatively better luminescent materials. These complexes presented good luminescent properties and thermal stability.
引文
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