The synthesis and characterization of a bis-oxime functionalized binucleating macrocycle and its polynuclear complexes

GOK Y., Karabocek S., Misir M. N.

TRANSITION METAL CHEMISTRY, vol.21, no.4, pp.331-336, 1996 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 21 Issue: 4
  • Publication Date: 1996
  • Doi Number: 10.1007/bf00139029
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.331-336
  • Karadeniz Technical University Affiliated: Yes


A novel tetraoxime containing a substituted twofold macrocycle, 6,6'-spirobi[1,12-di(hydroxyimino)-2,3:9,10-dibenzo-1,11-diaza-4,8-dithiacyclotridecane] (5), has been synthesized from 6,6'-bis(5'-amino-3',4'-benzo-2'-thiapentyl)-1, 11-diamino-2, 3:9, 10-dibenzo-4,8-dithiaundecane (3), which was itself prepared from the potassium salt of 2-aminothiophenol (2), pentaerythrityltetrabromide (1) and cyanogendi-N-oxide (4). A polymeric Co-III complex of (5) containing a 1:1 metal:ligand ratio has been isolated. The template synthesis of a new Co-III complex containing bridging BF2 groups was achieved using the hydrogen-bridged Co-III complex. The hetero-polynuclear complex of (5) was prepared by reacting the BF2+-capped polymeric Co-III complex with bis(benzonitrile)Pd(II)chloride. The structure of the ligand and its complexes are in accord to elemental analyses, H-1- and C-13-n.m.r., i.r. and mass spectral data.