期刊
INORGANIC CHEMISTRY
卷 51, 期 1, 页码 647-660出版社
AMER CHEMICAL SOC
DOI: 10.1021/ic202094p
关键词
-
资金
- National Institutes of Health [1 SC3 GM089589-02, 3 S06 GM008192-27SI, 5R25GM071381]
- Henry Dreyfus Teacher-Scholar Award
- National Science Foundation (NSF) [0923573, CHE 0733458]
- Howard Hughes Medical Institute [52006312]
- San Jose State University
- University of Nevada, Reno
- Direct For Biological Sciences
- Div Of Biological Infrastructure [0923573] Funding Source: National Science Foundation
- Division Of Chemistry
- Direct For Mathematical & Physical Scien [1058805] Funding Source: National Science Foundation
The enantiomers of N,N'-bis(1-phenylethyl)-2,6-pyridinedicarboxamide (L), namely, (R,R)-1, and (S,S)-1, react with Ln(III) ions to give stable [LnL(3)](3+) complexes in an anhydrous acetonitrile solution and in the solid state, as evidenced by electrospray ionization mass spectrometry, NMR, luminescence titrations, and their X-ray crystal structures, respectively. All [LnL(3)](3+) complexes [Ln(III) = Eu, Gd, Tb, and Yb; L = (R,R)-1 and (S,S)-1] are isostructural and crystallize in the cubic space group I23. Although the small quantum yields of the Ln(III)-centered luminescence clearly point to the poor efficiency of the luminescence sensitization by the ligand and the intersystem crossing and ligand-to-metal energy transfers, the ligand triplet-excited-state energy seems relatively well suited to sensitize many Ln(III) ion's emission for instance, in the visible (Eu and Tb), near-IR (Nd and Yb), or both regions (Pr, Sm, Dy, Er, and Tm).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据