SYNTHESIS AND METAL-COMPLEX FORMATION OF NITROGEN-OXYGEN DONOR MACROCYCLIC LIGANDS


GOK Y., YILDIZ S.

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, vol.620, no.5, pp.959-964, 1994 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 620 Issue: 5
  • Publication Date: 1994
  • Doi Number: 10.1002/zaac.19946200536
  • Title of Journal : ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
  • Page Numbers: pp.959-964

Abstract

Reduction of 2,3:9,10-dibenzo-5,12-diaza-1,8-dioxa-cylotetradecane-5,11-diene(1) with sodium borohydride in ethanol generates 2,3:9,10-dibenzo-5,12-diaza-1,8-dioxacyclotetradecane(2) in high yield. The macrocyclic ligand 2,3:9,10-dibenzo-5,12-diaza-1,8-dioxacyclotetradecane-N,N'-diacetic acid (3) has been synthesized and characerized. In addition, reaction of (2) with an excess of acrylonitrile gives 2,3:9,10-dibenzo-5,12-diaza-1,8-dioxacyclotetradecane-N,N'-di(2-cyanoethyl) (4). Several new complexes of these ligands with nickel(II), copper(II) and cobalt(II) have been prepared and identified. The structures of these complexes are proposed on the basis of elemental analysis, H-1, C-13-NMR, IR, UV-VIS spectra, magnetic susceptibility and conductivity data.