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Lanthanides: Complexes with Multidentate Ligands

  1. Xiaoping Yang1,
  2. Richard A. Jones1,
  3. Wai-Kwok Wong2

Published Online: 17 DEC 2012

DOI: 10.1002/9781119951438.eibc2029

Encyclopedia of Inorganic and Bioinorganic Chemistry

Encyclopedia of Inorganic and Bioinorganic Chemistry

How to Cite

Yang, X., Jones, R. A. and Wong, W.-K. 2012. Lanthanides: Complexes with Multidentate Ligands. Encyclopedia of Inorganic and Bioinorganic Chemistry. .

Author Information

  1. 1

    University of Texas at Austin, Austin, TX, USA

  2. 2

    Hong Kong Baptist University, Hong Kong, People's Republic of China

Publication History

  1. Published Online: 17 DEC 2012

Abstract

The synthesis, crystal structures, and photophysical properties of 25 polynuclear lanthanide complexes and lanthanide coordination polymers based on six multidentate “salen”-style Schiff-base ligands are described in this chapter. Most of these lanthanide complexes exhibit interesting “multidecker,” cage-like, or polymeric structures. In these complexes, the multidentate Schiff-base ligands can efficiently sensitize the emissions from lanthanide ions by serving as antennas that absorb excitation light and transfer the energy to the lanthanide centers. With the lanthanide ions encapsulated by chromophoric Schiff-base ligands and shielded from solvent molecules, which can quench the emissions of lanthanide ions, those lanthanide complexes which have multidecker and cage-like structures show improved luminescence properties.

Keywords:

  • lanthanide complexes;
  • multidentate Schiff-base ligands;
  • synthesis;
  • crystal structures;
  • luminescence properties;
  • polynuclear;
  • coordination polymer