Author： Wei Dan-Yi Xie Hong-Zhen Huang Shi-Jie Zhou Jin Lu Gan-Xiao
Publisher： Taylor & Francis Ltd
ISSN： 0095-8972
Source： Journal of Coordination Chemistry, Vol.64, Iss.3, 2011-02, pp. : 424-430
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Abstract
Four 2-D coordination polymers Ln2(phen)2(C5H6O4)3 [Ln = Pr(1), Eu(2), Er(3), Yb(4), phen = 1,10-phenanthroline] were obtained via hydrothermal reactions and determined by X-ray diffraction analysis. The crystal structure data reveal that these complexes are isostructural. In the asymmetric unit, the two Ln(III) ions are nine-coordinate and have similar coordination environments. The Ln(III) ions are built into 2-D layers by three different coordination modes of glutarate. The resulting 2-D layer forms 3-D supramolecular architecture by two types of π···π stacking interactions. All the complexes were characterized by IR spectra and thermogravimetric analysis, and the emission spectrum shows that Eu2(phen)2(C5H6O4)3 possesses strong luminescence.
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