The synthesis and characterization of novel tetraoxime and its mono- and polynuclear complexes containing 12-membered diaza-dithia macrocycles

Gok Y.

POLYHEDRON, vol.15, no.8, pp.1355-1361, 1996 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 15 Issue: 8
  • Publication Date: 1996
  • Doi Number: 10.1016/0277-5387(95)00370-3
  • Journal Name: POLYHEDRON
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1355-1361
  • Karadeniz Technical University Affiliated: No


A novel tetraoxime 5,6:11,12-dibenzo-2,3,8,9-tetrakis(hydroxyimino)-1,4-dithia-7,10-diazacyclododecane (LH(4)) has been synthesized from the reaction of (E,E)-dichloroglyoxime and S,S'-bis(2-aminophenyl)dithioglyoxime, which has been prepared from the hydrochloride salt of 2-amino-thiophenol and cyanogendi-N-oxide Mononuclear and polynuclear cobalt(III) complexes of LH(4) were prepared with pyridine together with chlorine ions as axial ligands. In addition,the synthesis of a new polynuclear cobalt complex which contains the bridging BF2+ was achieved by using a hydrogen bonded polynuclear cobalt(III) complex. The hetero-polynuclear complex [CuCo(LB(2)F(4))L'Cl] was obtained by reaction of the BF2+-capped cobalt(III) complex with copper(II) acetate. The structure of the ligand and its complexes are proposed according to elemental analyses, H-1 and C-13 NMR, IR and mass spectral data.