Abstract

ABSTRACT The synthesis of some new precoursers that contain substituted benzo units and their use in the preparation of azamacrocyclic diester compounds are reported. These precoursers and ligands were characterized by Elemental analysis, 1H and 13C NMR spectroscopy, and IR spectroscopy. The complexation constants Ke and ΔG° values for the diesters with several transition metal cations (Ag+, Zn2+ and Cu2+) in a dioxan–water system using a conductometric method at 25°C are also reported.

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