Novel Zn(II) and Cd(II) coordination polymers derived from 1,2,3-triazole-1,3-diketone ligand. Syntheses and structural, thermal, computational, and luminescent studies

Abstract

This article discloses the syntheses of two novel coordination polymers of Zn(II) and Cd(II) using a donor-functionalized 1,2,3-triazole-β-diketonato ligand, obtained by Claisen's condensation with ethyl 5-methyl-1-(pyridin-2-ylmethyl)-1H-1,2,3-triazole-4-carboxylate and 4-methoxyacetophenone. All compounds were characterized by spectroscopic solid-state techniques in solid-state, such as FT-IR, Single-crystal and powder X-Ray diffraction, luminescence, Thermal analyses (TGA/DSC), and, in the case of the precursor and donor ligand multinuclear NMR analyses. The syntheses of both coordination polymers were carried out under crystallization and bulk method, showing the same results in both methods according to the powder X-ray analyses. Thermal and luminescent properties allow us to conclude that these compounds are good candidates for UV – blue light emitters.