Reversible recrystallization process of copper and silver thioacetamide–halide coordination polymers and their basic building blocks

Abstract

Three-dimensional [CuX(TAA)]_n (X = Br (1), I (2)) and bi-dimensional [AgX(TAA)]_n (X = Cl (3), Br (4)) coordination polymers have been isolated by the direct synthesis from copper(I) and silver(I) halides and thioacetamide (TAA). These are multifunctional materials showing electrical conductivity (values at room temperature ranging from 7 × 10⁻⁶ to 2 × 10⁻⁹ S cm⁻¹) and luminescence in the blue region. The unusual solubility of 1–4 in different solvents and the recrystallization process observed for 1 and 2 in acetonitrile and for 3 and 4 in pyridine have been measured. We show preliminary results of the processability of 2 on glass for the production of organized thin films. These results are very attractive for the processability of coordination polymers in materials science and nanoscience.