1,3-双[3-(2-噻吩基)-3-氧代丙酰基]苯、2,2′-联吡啶和铕(Ⅲ)配合物的合成与荧光性质研究

Synthesis,Luminescent Properties of New Ternary Complex of Eu^(3+) with 1,3-Bis[3-(2-Thiophenyl)-3-Oxopropan-Oyl]Benzene and 2,2'-Bipyridine

合成了一个新型双β-二酮有机配体1,3-双[3-(2-噻吩基)-3-氧代丙酰基]苯、2,2′-联吡啶和铕(Ⅲ)的3元配合物,并应用元素分析、稀土络合滴定、摩尔电导测定、红外光谱、紫外-可见光谱和热重-差热分析对配合物进行了组成确定和结构表征.荧光分析结果表明,配合物的发射光谱612nm处为中心离子Eu3+的特征红光,属5D0→7F2跃迁带,峰形尖锐,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.

A new ternary complex of Eu3＋ with 1,3-bis[3-（2-thiophenyl）-3-oxopropan-oyl] benzene and 2,2＇-Bipyridine was synthesized.The properties of this complex were characterized by elemental analysis,rare earth coordination titration,molar conductivities studies,IR spectrometry,UV-Visible spectrometry and TG-DSC.The photoluminescence of complex indicated that there was a sharp and strong red peak at 612 nm,which was attributed to 5D0→7F2 of Eu3＋ ion.The results showed that this Eu3＋-bis（β-diketone） complex would be a kind of excellent red light material.