Metal-Controlled Diastereoselective Self-Assembly and Circularly Polarized Luminescence of a Chiral Heptanuclear Europium Wheel
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). © 2012 American Chemical Society.
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Bozoklu, G., Gateau, C., Imbert, D., Pecaut, J., Robeyns, K., Filinchuk, Y., Memon, F., Muller, G., & Mazzanti, M. (2012). Metal-Controlled Diastereoselective Self-Assembly and Circularly Polarized Luminescence of a Chiral Heptanuclear Europium Wheel. Journal of the American Chemical Society, 134(20), 8372–8375. https://doi.org/10.1021/ja3020814
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WOS:000304285700022
2012
134
20
8372
8375
REVIEWED
OTHER