期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 134, 期 20, 页码 8372-8375出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja3020814
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资金
- NIH [1 SC3 GM089589-03, 3 S06 GM008192-27S1]
- Henry Dreyfus Teacher-Scholar Award
- Howard Hughes Medical Institute [52006312]
The chiral dissymmetric tetradentate ligand (S)-6'-(4-phenyloxazolin-2-yl)-2,2'-bipyridine-6-carboxylate (S-Phbipox) leads to the diastereoselective assembly of a homochiral Eu3+ triangle and a highly emissive (quantum yield = 27%) heptanuclear wheel that is the largest example of a chiral luminescent complex of Eu3+ reported to date. The nuclearity of the assembly is controlled by the solvent and the Eu3+ cation. All of the compounds show large circularly polarized luminescence with an activity that varies with the nature of the assembly (highest for the homochiral trimer).
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