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无机特种功能材料重庆市重点实验室 长江师范学院化学化工学院 重庆,408100
[ "朱乾华(1972-),男,重庆人,2006年于西南大学获得硕士学位,主要从事稀土发光材料的合成与光谱分析的研究。E-mail:370154033@qq.com" ]
纸质出版日期:2015-7-3,
网络出版日期:2015-5-8,
收稿日期:2015-3-31,
修回日期:2015-4-28,
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朱乾华,. 不同有机碱对铕-2-羟基喹啉-4-羧酸配合物发光性能的影响[J]. 发光学报, 2015,36(7): 763-768
ZHU Qian-hua,. Influence of Different Organic Bases on The Luminescence Properties of Europium Complexes with 2-Hydroxyquinoline-4-Carboxylic Acid[J]. Chinese Journal of Luminescence, 2015,36(7): 763-768
朱乾华,. 不同有机碱对铕-2-羟基喹啉-4-羧酸配合物发光性能的影响[J]. 发光学报, 2015,36(7): 763-768 DOI: 10.3788/fgxb20153607.0763.
ZHU Qian-hua,. Influence of Different Organic Bases on The Luminescence Properties of Europium Complexes with 2-Hydroxyquinoline-4-Carboxylic Acid[J]. Chinese Journal of Luminescence, 2015,36(7): 763-768 DOI: 10.3788/fgxb20153607.0763.
分别在有机碱三乙胺、三丙胺和三丁胺的作用下
使用2-羟基喹啉-4-羧酸(H
2
hqc) 与EuCl
3
6H
2
O反应制备了3种配合物Eu(Hhqc)
3
(TEL)、Eu(Hhqc)
3
(TPL) 和Eu(Hhqc)
3
(TBL)。通过元素分析、热重分析、摩尔电导率、紫外光谱、荧光光谱、荧光寿命和量子产率等对配合物进行了表征。所有配合物均在580
592
613
654
702 nm附近产生5条谱带
为Eu
3+
的特征发射
归属为
5
D
0
7
F
J
(
J
=0
1
2
3
4)能级间的跃迁
荧光寿命分别为2.22
3.29
3.31 ms
量子产率分别为0.011
0.019
0.028。随着有机胺碳链长度的增加
配合物的荧光强度依次增大
表明有机碱参与了配合物的分子组成。
Three kinds of Europium complexes
Eu(Hhqc)
3
(TEL)
Eu(Hhqc)
3
(TPL) and Eu-(Hhqc)
3
(TBL) were synthesized by the reaction of 2-hydroxyquinoline-4-carboxylic acid (H
2
hqc) with EuCl
3
6H
2
O under the treatment with triethylamine (TEL)
tripropylamine (TPL) and tributylamine (TBL)
respectively. Three complexes were characterized by elemental analysis
thermogravimetric analysis
molar conductivity
UV spectra
fluorescence spectra
fluorescence life-time and quantum yield methods. Each complex shows five emission bands at 580
592
613
654
702 nm
which are assigned to the characteristic emission
5
D
0
7
F
J
(
J
=0
1
2
3
4) transitions of Eu
3+
. The fluorescence life-times are 2.22
3.29
3.31 ms
the quantum yields are 0.011
0.019
and 0.028 for Eu(Hhqc)
3
(TEL)
Eu(Hhqc)
3
(TPL) and Eu(Hhqc)
3
(TBL)
respectively. The fluorescent intensities increase with the increasing of carbon chain length of the organic bases
indicating the organic bases are involved in the formation of europium complexes.
铕配合物有机胺2-羟基喹啉-4-羧酸荧光寿命量子产率
europium complexesorganic amine2-hydroxyquinoline-4-carboxylic acidfluorescence life-timequantum yield
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