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Issue 24, 2012
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2-D and 3-D organic–inorganic hybrid lanthanide molybdates linking by pyridine-2,5-dicarboxylate

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Abstract

Seven organic–inorganic hybrid lanthanide dimolybdates [Ln(H2O)6Mo2O6(Hpydc)(pydc)]·nH2O (n = 0: Ln = LaIII (1), CeIII (2), PrIII (3), NdIII (4), SmIII (5); n = 0.5: Ln = EuIII (6)), and Na0.5H0.5[Er(H2O)5Mo2O6(pydc)2]·3H2O (7) (H2pydc = pyridine-2,5-dicarboxylic acid) have been hydrothermally prepared and further characterized by elemental analyses, X-ray powder diffraction (XRPD), IR spectra, thermogravimetric (TG) analyses, and single-crystal X-ray diffraction. The common feature of 1–7 is that they all consist of LnIII cations and MoIV centers connected by oxygen atoms and H2pydc ligands. 1–6 show unprecedented 3D 8-connected networks with the Schläfli symbol of (34·417·54·63), while 7 exhibits the 2D 4-connected (45·6) structure. Furthermore, the luminescence properties of 5 and 6 are derived from the combination of Ln cations and H2pydc ligands, whereas 1–4 and 7 are attributable to H2pydc ligands.

Graphical abstract: 2-D and 3-D organic–inorganic hybrid lanthanide molybdates linking by pyridine-2,5-dicarboxylate

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Publication details

The article was received on 30 Jun 2012, accepted on 05 Oct 2012 and first published on 09 Oct 2012


Article type: Paper
DOI: 10.1039/C2CE26208H
Citation: CrystEngComm, 2012,14, 8677-8683
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    2-D and 3-D organic–inorganic hybrid lanthanide molybdates linking by pyridine-2,5-dicarboxylate

    S. Zhang, K. Wang, D. Zhang, P. Ma, J. Niu and J. Wang, CrystEngComm, 2012, 14, 8677
    DOI: 10.1039/C2CE26208H

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