通过分子设计, 合成了一种新颖的双β-二酮有机配体9-乙基-3, 6-二(乙酰基-3-苯甲酰基)咔唑(H2L)及其铕配合物, 红外光谱和电子光谱表明Eu3+与H2L发生配位.配合物的溶液荧光光谱不仅有613 nm处的中心离子Eu3+的特征红光, 属5D0→7F2跃迁带, 还有445 nm处配体的宽带蓝色发光, 属H2L*→H2L跃迁带, 而配合物的光致发光光谱只有611 nm处为中心离子Eu3+的特征红光, 属5D0→7F2跃迁带, 峰形尖锐, 半峰宽仅7 nm, 单色性好, 表明该固体铕双β-二酮配合物是一种潜在的红色发光材料.
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