Synthesis, spectral, thermal and structural characterization of{[Cu(H2O)(3)][Cu(MAL)(2)]center dot 2H(2)O}(infinity) and [Cu(MAL)(TEA)]center dot H2O (MAL = malonate and TEA = triethanolamine)


YILMAZ V. T. , Senel E., Thone C.

TRANSITION METAL CHEMISTRY, vol.29, no.3, pp.336-342, 2004 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 29 Issue: 3
  • Publication Date: 2004
  • Doi Number: 10.1023/b:tmch.0000020381.99658.ac
  • Title of Journal : TRANSITION METAL CHEMISTRY
  • Page Numbers: pp.336-342

Abstract

A polymeric malonato-bridged copper(II) complex, {[Cu(H2O)(3)][Cu(MAL)(2)] . 2H(2)O}(infinity), and a mononuclear malonato-copper(II) complex with triethanolamine, [Cu(MAL)(TEA)] . H2O, have been prepared and characterized by elemental analyses, i.r., u.v. - vis, magnetic measurements and single crystal X-ray diffraction. The polymeric complex consists of one-dimensional chains containing the MAL bridged [Cu(H2O)(3)](2+) and [Cu(MAL)(2)](2-) ions and each MAL ligand simultaneously exhibits chelating bidentate (at one copper atom) and bridging ( at the adjacent copper atom) coordination modes. The intrachain Cu1...Cu2 separation is 4.963 Angstrom and the polymeric complex exhibits antiferromagnetic behaviour. In the mononuclear complex, the copper(II) ion is octahedrally coordinated by one bidentate MAL and one tetradentate neutral TEA ligands. The i. r. spectra and thermal decompositions of both complexes are described.