摘 要本论文利用了1H-咪唑[4,5-f][1,10]邻菲啰啉(DIPP)作为敏化剂,和发光性能良好的Eu(tta)3(H2O)2(tta是2-噻吩甲酰三氟丙酮阴离子)进行了定向地自组装,采用紫外-可见吸收光谱(UV-Vis)的滴定法研究了1H-咪唑[4,5-f][1,10]邻菲啰啉与Eu(tta)3(H2O)2的配位情况,再用发射光谱(Emission Spectrum)滴定法研究了1H-咪唑[4,5-f][1,10]邻菲啰啉敏化Eu(III)发光的性能。实验结果表明,当用330 nm的波长激发时,在1H-咪唑[4,5-f][1,10]邻菲啰啉的敏化下,Eu(III)发光强度显著增强,这说明了1H-咪唑[4,5-f][1,10]邻菲啰啉是Eu(III)发光的一个良好的敏化剂。69984
该论文有图10幅,表1个,参考文献13篇
毕业论文关键词: 铕(III) 1H-咪唑[4,5-f][1,10]邻菲啰啉 敏化发光
Synthesis and Luminescent Properties of 1H-Imidazo[4,5-f][1,10]Phenanthroline-Eu(III) Complexes
Abstract 1H-imidazo[4,5-f][1,10]phenanthroline(DIPP), a sensitizer, was used to react with well luminescent Eu(tta)3(H2O)2 (tta = 2-thenoyltrifluoroacetone anion) complex through directional self-assembly. The coordination ratio between DIPP and Eu(tta)3(H2O)2 was studied through UV-vis absorption titration. And the sensitized Eu(III) luminescence by DIPP was studied using emission spectrum titration. The experimental results show that, the emission intensity at 618 nm of Eu(III) centered luminescence enhances obviously than that of Eu(III) with ex = 330 nm sensitized by DIPP, indicating DIPP is a good sensitizer for Eu(III) luminescence.
Key Words: europium(III) 1H-imidazo[4,5-f][1,10]phenanthroline sensitized luminescence
1H-咪唑[4,5-f][1,10]邻菲啰啉-Eu(III)配合物的合成与发光性能
目 录
摘要--Ⅰ
Abstract-Ⅱ
目录--Ⅲ
图清单---Ⅳ
表清单---Ⅳ
1 绪论1
2 实验2
2.1仪器---2
2.2原料与试剂--2
2.3化合物的制备---2
2.4光谱滴定-2
3 结果与讨论---3
3.1红外光谱-3
3.2紫外光谱-3
3.3荧光光谱-3
4 结论4
参考文献-5
致谢---6
图清单
图序号 图名称 页码
图1-1 Eu(tta)3(H2O)2的结构示意图 1
图1-2 DIPP的结构示意图 2
图2-1 DIPP的合成示意图 2
图2-2 配合物1的结构示意图 3
图3-1 Eu(tta)3(H2O)2、DIPP和配合物1三者的UV-vis吸收光谱对比图 5
图3-2 在CH2Cl2中用DIPP滴定Eu(tta)3(H2O)2时的UV-vis吸收光谱变化趋势图 5
图3-3 用DIPP滴定Eu(tta)3(H2O)2时,360 nm处的吸光度的变化趋势图
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图3-4 在CH2Cl2中用DIPP滴定Eu(tta)3(H2O)2时的发射光谱(ex = 330 nm)图
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图3-5 DIPP、Eu(tta)3(H2O)2和配合物1的发射光谱对比图 7
图3-6 在紫外灯的照射下,相同浓度溶液的发光对比图
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表清单
表序号 表名称 页码
表1-1 Eu(tta)3(H2O)2和DIPP的混合溶液配置表