It was shown that coordination polymers [Ln(Camph)(NO3)(MeOH)2]n (1Ln, Ln – Eu, Tb; Camph2––camphorate dianion) and [Ln2(tFbdc)3(DMF)2(H2O)2]n (2Ln, Ln – Eu, Tb; tFbdc2–– tetrafluoroterephtalate dianion) possess metal-centered emission with quantum yields up to 40% under UV-irradiation. It was found that tetrafluoroterephtalate dianion is better antenna ligand than camphorate dianion. It was assumed that for studied complexes the vibrational radiationless deactivation of excited states of ligands influence more significantly on the luminescence characteristics than energy of triplet states of ligands.
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This work was supported by a joint grant of the National Academy of Sciences of Ukraine and the Russian Foundation for Basic Research (Nos. 03-03-14 and 14-03-90423).
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Translated from Teoreticheskaya i Éksperimental’naya Khimiya, Vol. 51, No. 1, pp. 27-33, January-February, 2015.
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Mikhalyova, E.A., Smola, S.S., Garvilenko, K.S. et al. Metal-Centered Photoluminescence of Eu3+ and Tb3+ Coordination Polymers with Dianions of Camphoric and Tetrafluoroterephthalic Acids. Theor Exp Chem 51, 30–36 (2015). https://doi.org/10.1007/s11237-015-9394-x
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DOI: https://doi.org/10.1007/s11237-015-9394-x