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American Chemical Society, Crystal Growth and Design, 3(10), p. 1059-1067, 2010

DOI: 10.1021/cg900299v

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Synthesis, crystal structures, and properties of novel heterometallic La/Pr-Cu-K and Sm/Eu/Tb-Cu coordination polymers

Journal article published in 2010 by Ya-Guan Sun, Xiao-Fu Gu, Fu Ding, Philippe F. Smet ORCID, En-Jun Gao, Dirk Poelman ORCID, Francis Verpoort
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

Five new heterometallic coordination polymers, {[LnCu(2)K(pydc)(4)(H2O)(9)]center dot H2O}(n) [Ln = La (1), Ln = Pr (2), H(2)pydc = pyridine-2,5-dicarboxylic acid], {[Ln(2)Cu(pydc)(4)(H2O)(8)]center dot H2O}n [Ln = Sm (3), Ln = Eu (4), Ln = Tb (5)], have been synthesized under hydrothermal conditions and characterized by elemental analysis, IR, thermogravimetric analysis, and single-crystal X-ray diffraction. X-ray structural analysis revealed that complexes 1 and 2 are the first Ln/Cu/K structures containing Cu(II) sandwiched in the interlayer regions of the two La/K planes alternately arranged along the b-axis. In complexes 3-5, two distinct types of building blocks, Ln(pydc)(H2O)(4) and Cu(pydc)(2), are linked together by pydc ligands to form a two-dimensional net structure. The magnetic properties of 1 and 2 and the luminescence properties of 3-5 have been investigated.