Syntheses and characterizations of a novel 1,2,3,4-tetrahydroquinazoline and a Co(III) complex

Mutlu H., Irez G., Colak A. T., Yilmaz F.

JOURNAL OF COORDINATION CHEMISTRY, vol.65, no.12, pp.2192-2200, 2012 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 65 Issue: 12
  • Publication Date: 2012
  • Doi Number: 10.1080/00958972.2012.688823
  • Journal Name: JOURNAL OF COORDINATION CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.2192-2200
  • Keywords: 2-Furan-2-yl-1,2,3,4-tetrahydroquinazoline-2-carbaldehyde oxime, Amine-imine-oxime, Schiff base, Cobalt(III) complex, 2-Aminobenzyl amine, TRANSITION-METAL-COMPLEXES, RING-CHAIN TAUTOMERISM, SOLVENT-FREE SYNTHESIS, OXIME LIGANDS, SPECTROPHOTOMETRIC DETERMINATION, TETRAVALENT NICKEL, QUINAZOLINES, CHEMISTRY, EFFICIENT, DERIVATIVES
  • Anadolu University Affiliated: Yes

Abstract

The 2-furan-2-yl-1,2,3,4-tetrahydroquinazoline-2-carbaldehyde oxime (HL) and complex of tridentate ligand containing oxime, imine, and amine donors resulting from reactions with cobalt(II) salt have been synthesized and characterized by spectral methods (FT-IR, NMR, UV-Vis, mass), elemental analysis, magnetic susceptibility, molar conductivity, and thermal analysis (TG, DTA) techniques. The molecular structure of HL was elucidated from single-crystal X-ray diffraction. X-ray crystallographic analysis shows that the molecule crystallizes in the monoclinic system, space group C2/c. In the complex, chloride was not coordinated as confirmed by conductivity measurements. The metal is coordinated to the oxime, imine, and amine nitrogen atoms and decomposes with loss of the organic ligand and halogen to leave metal oxide. The metal to ligand ratio was 1 : 2 by elemental analysis and mass spectrum.