New dinuclear nonaazadentate Schiff base podates of rare earth(III) ions

Authors:

• Violetta Patroniak

Abstract

As a result of [1+2] Schiff base condensation in the template reaction between 2,6-diacetylpyridine and 3,7-diazanonane-1,9-diamine in the presence of rare earth(III) ions (M = Y³⁺, La³⁺, Pr³⁺, Sm³⁺, Eu³⁺, Gd³⁺, Tb³⁺, Ho ³⁺, Er³⁺, Tm³⁺, Yb³⁺), new dinuclear architectures containing a ligand with N₉ set of donor atoms with terminal amine groups have been formed. The complexes have been characterized by the spectroscopic and thermogravimetric data and microanalyses.