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Issue 8, 2010
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Square structures and photophysical properties of Zn2Ln2 complexes (Ln = Nd, Eu, Sm, Er, Yb)

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Abstract

Heterotetranuclear Zn2Ln2 (Ln = Nd 2, Eu 3, Sm 4, Er 5, Yb 6) complexes {Zn2(Mq)2(tpyO)2}{(Ln(hfac)3)2} (HMq = 2-methyl-8-hydroxylquinoline, tpyOH = [2,2′:6′2′′]terpyridin-4′-ol, hfac = hexafluoroacetylacetonate) display novel square structures ligated by bifunctional ligands tpyO (mono- and tridentate) and Mq (chelating and bridging μ-phenoxo). These compounds exhibit sensitized lanthanide emission upon photo-excitation of ZnMq/tpy antenna chromophores. By virtue of the dual luminescence with complementary colors, the ZnMq/tpyO-based cyan emission and SmIII-centered orange luminescence are combined to generate a white-light emission in Zn2Sm2 (4) complex.

Graphical abstract: Square structures and photophysical properties of Zn2Ln2 complexes (Ln = Nd, Eu, Sm, Er, Yb)

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The article was received on 15 Sep 2009, accepted on 19 Nov 2009 and first published on 24 Dec 2009


Article type: Paper
DOI: 10.1039/B919170D
Dalton Trans., 2010,39, 1948-1953

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    Square structures and photophysical properties of Zn2Ln2 complexes (Ln = Nd, Eu, Sm, Er, Yb)

    H. Xu, H. Wen, Z. Chen, J. Li, L. Shi and Z. Chen, Dalton Trans., 2010, 39, 1948
    DOI: 10.1039/B919170D

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