Bis(saccharinato)copper(II) complexes with 2-aminomethylpyridine and 2-aminoethylpyridine: Syntheses, crystal structures, spectral and thermal characterizations of trans-[Cu(sac)(2)(ampy)(2)] and [Cu(sac)(2)(aepy)(H2O)] (ampy=2-aminomethylpyridine and aepy=2-aminoethylpyridine)

V T Yilmaz, S Caglar, W T A Harrison

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Abstract

Two bis(saccharinato)copper(II) complexes with 2-aminomethylpyridine (ampy) and 2-aminoethylpyridine (aepy) have been prepared and characterized by elemental analyses, IR and electronic spectroscopy, magnetic measurements and single-crystal X-ray diffraction. The copper(II) ion in trans-[Cu(sac)(2)(ampy)(2)] has -1 site symmetry and is octahedrally coordinated by two neutral ampy and two anionic sac ligands, whereas the copper(H) ion in [Cu(sac)(2)(aepy)(H2O)] is five-coordinate with a distorted square-pyramidal coordination geometry. Both ampy and aepy behave as bidentate (N,N') chelating ligands, while the saccharinate anion (sac) in the title complexes is N-coordinated. IR spectra of both complexes display typical absorption bands of bidentate aminopyridines and N-bonded sac ligands. Thermal decomposition behavior of the complexes is described in detail.

Original languageEnglish
Pages (from-to)549-558
Number of pages10
JournalJournal of Coordination Chemistry
Volume58
DOIs
Publication statusPublished - 2005

Keywords

  • 2-aminomethylpyridine
  • 2-aminoethylpyridine
  • copper(II) complex
  • crystal structure
  • MOLECULAR-STRUCTURE
  • COORDINATION MODES
  • METAL-COMPLEXES
  • SACCHARIN
  • COPPER(II)
  • DIHYDRATE
  • LIGANDS
  • CU(II)
  • AMINES

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