2,2′-bipyridine lariat calixcrowns:: A new class of encapsulating ligands forming highly luminescent Eu3+ and Tb3+ complexes

被引：0
|
作者：
Fischer, C
Sarti, G
Casnati, A
Carrettoni, B
Manet, I
Schuurman, R
Guardigli, M
Sabbatini, N
Ungaro, R
机构：
[1] Univ Parma, Dipartimento Chim Organ & Ind, I-43100 Parma, Italy
[2] Univ Bologna, Dipartimento Sci Farmaceut, I-40126 Bologna, Italy
来源：
CHEMISTRY-A EUROPEAN JOURNAL | 2000年 / 6卷 / 06期
关键词：
calixarenes; conformation analysis; crown compounds; lanthanides; luminescence;
D O I：
10.1002/(SICI)1521-3765(20000317)6:6<1026::AID-CHEM1026>3.0.CO;2-C
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new class of calix[4]arene crown ethers with one or two bipyridines appended to the polyether ring (lariat calixcrowns) have been designed and synthesized; the luminescence properties of their Eu3+ and Tb3- complexes have been studied in acetonitrile. In this solvent, long lifetimes for the metal emitting states and high metal-luminescence intensities obtained upon ligand excitation have been observed in both Eu3+ and Tb3+ complexes The association constants in methanol have been determined for some of the complexes studied.
引用
收藏
页码：1026 / 1034
页数：9
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