Lanthanide-mediated triangular cationic assemblies: structural and physico-chemical properties.

Dalton Trans

Department of Inorganic, Analytical and Applied Chemistry, University of Geneva, 30 quai E. Ansermet, 1211 Geneva 4, Switzerland.

Published: April 2012

AI Article Synopsis

  • This study explores the formation of Ln(III) complexes using a ditopic ligand called L1, focusing on their structural, thermodynamic, and photophysical characteristics.
  • Spectrophotometric and NMR titrations reveal the creation of triangular assemblies, denoted as [Ln(3)(L1-H)(3)](6+), which are compared to similar complexes containing a different ligand, L2.
  • The research also identifies a dinuclear species, [Ln(2)(L1-H)](5+), when there is a surplus of metal present in the mixture.

Article Abstract

This contribution investigates Ln(III) complexes formed with a small ditopic ligand, L1, and their structural, thermodynamic and photophysical properties. The spectrophotometric and NMR titrations evidence the triangular assemblies [Ln(3)(L1-H)(3)](6+) at stoichiometric conditions and their properties are discussed in relation to L2-containing analogues. In addition, the dinuclear species, [Ln(2)(L1-H)](5+), is observed with an excess of metal.

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Source
http://dx.doi.org/10.1039/c2dt12227hDOI Listing

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