Syntheses, structures and properties of three new two-dimensional Cu(I)-Ln(III) heterometallic coordination polymers based on 2,2'-dipyridyl-5,5'-dicarboxylate ligands

Spectrochim Acta A Mol Biomol Spectrosc. 2013 Dec:116:348-54. doi: 10.1016/j.saa.2013.07.079. Epub 2013 Aug 6.

Abstract

Three new two-dimensional Cu(I)-Ln(III) heterometallic coordination polymers [Ln(III)Cu2(I)(Hbpdc)4] · Cl · xH2O [Ln(III) = La(III), x = 8 (1); Ln(III) = Pr(III), x=9 (2); Ln(III) = Eu(III), x = 8 (3)] (H2bpdc = 2,2'-bipyridyl-5,5'-dicarboxylic acid) have been prepared under hydrothermal conditions and structurally characterized by elemental analyses, inductively coupled plasma atomic emission spectrometry (ICP-AES) analyses, IR spectra, X-ray photoelectron spectroscopy (XPS) and single-crystal X-ray diffraction. X-ray diffraction indicates that the isomorphic 1-3 display the two-dimensional sheet structure constructed from [Cu(I)(Hbpdc)2](-) fragments through Ln(3+) connectors. Moreover, the solid-state photoluminescence measurements of 3 indicate that the Eu(III) ions, Hbpdc(-) ligands and Cu(I) cations make contributions to its luminescent properties simultaneously.

Keywords: 2,2′-Bipyridyl-5,5′-dicarboxylic acid; Luminescence; Two-dimensional Cu(I)–Ln(III) heterometallic coordination polymers.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • 2,2'-Dipyridyl / chemical synthesis
  • 2,2'-Dipyridyl / chemistry*
  • Carboxylic Acids / chemical synthesis
  • Carboxylic Acids / chemistry*
  • Coordination Complexes / chemical synthesis
  • Coordination Complexes / chemistry*
  • Copper / chemistry*
  • Crystallography, X-Ray
  • Lanthanoid Series Elements / chemical synthesis
  • Lanthanoid Series Elements / chemistry*
  • Luminescence
  • Models, Molecular
  • Photoelectron Spectroscopy
  • Polymers / chemical synthesis
  • Polymers / chemistry*

Substances

  • Carboxylic Acids
  • Coordination Complexes
  • Lanthanoid Series Elements
  • Polymers
  • 2,2'-Dipyridyl
  • Copper