The unprecedented role of a CuII cryptand in the luminescence properties of a EuIII cryptate complex |
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| Authors: | Hideki Ohtsu Tomoya Suzuki Hajime Ohtsuka Ayumi Ishii Miki Hasegawa |
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| Affiliation: | (1) Department of Chemistry and Biological Science, College of Science and Engineering, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 229-8558, Japan;(2) Institute for Molecular Science, 38 Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan;(3) Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan |
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| Abstract: | Abstract A EuIII cryptate complex constructed from a CuII cryptand with an L tBu ligand, [EuIIICu2II(L tBu)2(NO3)3(MeOH)], and the corresponding CaII and NaI cryptates, [CaIICu2II(L tBu)2(NO3)2(MeOH)2] and [NaICu2II(L tBu)2(Me2CO)](BPh4), have been synthesized and characterized in order to shed light on the essential role of CuII in the luminescence of a EuIII cryptate. The unprecedented role of a CuII cryptand makes it possible to produce lanthanide luminescence in a EuIII cryptate complex and is successfully elucidated by comparison with the corresponding CaII and NaI cryptates. Graphical abstract  Electronic supplementary material The online version of this article (doi:) contains supplementary material, which is available to authorized users. |
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| Keywords: | Metal complexes Lanthanoids X-ray structure determination Fluorescence spectroscopy UV/vis spectroscopy |
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