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合成了一种新的β-二酮1-(对乙炔基苯基)-1,3-丁二酮(HPB),用元素分析、1HNMR谱及质谱确定了其组成,核磁和红外分析结果表明HPB以烯醇式存在.以HPB分别与Sm(Ⅲ),Eu(Ⅲ),Tb(Ⅲ)和Dy(Ⅲ)反应,合成了四个新的二元稀土配合物,用红外光谱、化学分析、元素分析及热重分析对它们的组成和结构进行了表征.室温下,在紫外光激发下,Sm(Ⅲ),Eu(Ⅲ),Tb(Ⅲ)和Dy(Ⅲ)的配合物表现出中心离子的特征荧光发射.其中Eu(Ⅲ)配合物的发光强度最大,发射谱线很窄,是具有一定应用价值的红色高亮发光材料.通过量子化学计算从理论上对实验结果进行了解释.
A new β-diketone 1- (p-ethynylphenyl) -1,3-butanedione (HPB) was synthesized and its composition was confirmed by elemental analysis, 1HNMR and MS spectra. NMR and IR analysis showed that HPB was enolized, and four novel binary rare earth complexes were synthesized by reacting HPB with Sm (Ⅲ), Eu (Ⅲ), Tb (Ⅲ) and Dy (Ⅲ) , Their compositions and their structures were characterized by elemental analysis and thermogravimetric analysis. The complexes of Sm (Ⅲ), Eu (Ⅲ), Tb (Ⅲ) and Dy (Ⅲ) The Eu (Ⅲ) complex has the strongest luminescence intensity and narrow emission line, which is a red luminescent material with certain application value.The experimental results are theoretically explained by quantum chemistry calculation .