Synthesis, solid state and solution structures of two isomeric dicopper(II) complexes with functionalized azetidine ligands

Peter Comba, Nina Dovalil, Hyang Hoo Kim, Jong Seung Kim, Yang Kim, Young Hoon Lee, Pierre Thuéry, Marta Zajaczkowski

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Abstract

Reported are the crystal and solution structures (determined by X-ray crystallography and EPR spectroscopy/simulation of the EPR spectra, respectively) of two dinuclear Cu II complexes, coordinated to isomeric dinucleating azetidine-based ligands, whose N 3 cavities (pyridine/azetidine/secondary amine) are bridged by para- or meta-substituted phenyl groups. The Cu II sites in the two dinuclear systems are similar to each other and as expected from the known structure of the corresponding mononuclear complex. The significant differences between the crystal structures of the mono- and the two dinuclear complexes and between the crystal and the solution structures are due to the elasticity of the Cu II coordination sphere, the flexibility of the dinucleating ligands and subtle changes related to weak interactions (crystal lattice, solvation, anion coordination/ion pairing).

Original languageEnglish
Pages (from-to)59-64
Number of pages6
JournalJournal of Inclusion Phenomena and Macrocyclic Chemistry
Volume65
Issue number1
DOIs
Publication statusPublished - 2009 Sep 1

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Keywords

  • Dicopper (II) complexes
  • Dinucleating ligands
  • EPR spectroscopy
  • Solution structure
  • X-ray crystallography

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Food Science
  • Chemistry(all)

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