Bis(saccharinato)copper(II) complexes with 2-aminomethylpyridine and 2-aminoethylpyridine:: Syntheses, crystal structures, spectral and thermal characterizations of <i>trans</i>-[Cu(sac)<sub>2</sub>(ampy)<sub>2</sub>] and [Cu(sac)<sub>2</sub>(aepy)(H<sub>2</sub>O)] (ampy=2-aminomethylpyridine and aepy=2-aminoethylpyridine)

YILMAZ V. T., Caglar S., Harrison W.

JOURNAL OF COORDINATION CHEMISTRY, vol.58, no.6, pp.549-558, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 58 Issue: 6
  • Publication Date: 2005
  • Doi Number: 10.1080/00958970500043647
  • Journal Name: JOURNAL OF COORDINATION CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.549-558
  • Keywords: 2-aminomethylpyridine, 2-aminoethylpyridine, copper(II) complex, crystal structure, MOLECULAR-STRUCTURE, COORDINATION MODES, METAL-COMPLEXES, SACCHARIN, COPPER(II), DIHYDRATE, LIGANDS, CU(II), AMINES
  • Ondokuz Mayıs University Affiliated: No

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.