We report here the synthesis and ch

We report here the synthesis and characterization
of a trisbenzimidazole derivative, tris(2-
benzimidazylmethyl)amine, which contains four
potential donor sites (Fig. 1, ligand abbreviated
NTB) and a number of its cobalt and zinc complexes.
The ligand has been synthesized by two
independent routes, one involving condensation of o-phenylenediamine with nitrilotriacetonitrile
and the other by condensation of the diamine
with nitrilotriacetic acid (Fig. 1).