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Issue 31, 2013
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Fluorescent single-ion magnets: molecular hybrid (HNEt3)[DyxYb1−x(bpyda)2] (x = 0.135–1)

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Four single-phase isostructural mononuclear complexes (HNEt3)[DyxYb1−x(bpyda)2]·3H2O (x = 1 (1), 0 (2), 0.367 (3), 0.135 (4), bpyda = 2,2′-bipyridine-6,6′-dicarboxylate) show characteristics of controllable slow relaxation and photoluminescence. The molecular hybrids 3 and 4 exhibit the Orbach process for the DyIII component and a mixture of direct and Raman processes for the YbIII component. The presence of paramagnetic YbIII enhances the relaxation time of the DyIII component, originating from the suppression of the direct process/QTM. The correlation between photoluminescence, static susceptibilities and dynamic magnetic relaxation in the hybrid species was also analysed by comparing the energy gap between the ground and first excited states to the energy barrier.

Graphical abstract: Fluorescent single-ion magnets: molecular hybrid (HNEt3)[DyxYb1−x(bpyda)2] (x = 0.135–1)

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Publication details

The article was received on 09 May 2013, accepted on 31 May 2013 and first published on 31 May 2013

Article type: Paper
DOI: 10.1039/C3DT51220G
Citation: Dalton Trans., 2013,42, 11262-11270
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    Fluorescent single-ion magnets: molecular hybrid (HNEt3)[DyxYb1−x(bpyda)2] (x = 0.135–1)

    Q. Li, J. Liu, J. Jia, J. Leng, W. Lin, Y. Chen and M. Tong, Dalton Trans., 2013, 42, 11262
    DOI: 10.1039/C3DT51220G

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