Synthesis and Characterization of Nanosized Uranyl Coordination Polymers Derived from Terephthalic Acid and Azoles

Abstract

The structure of the complexes [UO 2 (TPA)(Azole)(H 2 O)].xH 2 O, TPA = 1,4-benzenedicarboxylic acid and azoles = 2-aminobenzothiazole, 2-aminothiazole, 2-amino-4-methylthiazole and 2-mercaptobenzothiazole has been prepared and characterized. The structure of the complexes has been assigned based on elemental analysis, IR, electronic spectral studies, magnetic measurement, molar conductance, Scanning electron microscope (S.E.M), X-ray powder diffraction techniques investigations and thermogravimetric analysis complete the characterization of the compound. Thermogravimetry(TG), derivative thermogravimetry (DTG) and differential thermal analysis (DTA) have been used to study the thermal decomposition of the complexes. The kinetic parameters have been calculated making use of the Coats-Redfern and Horowitz-Metzger. The scanning electron microscope SEM photographs and particle size calculations from the powder XRD data indicate the average size of the prepared UO 2 (II) (28-56 nm) supramolecular coordination polymers in the nanoscale range. The biological screening of the compounds was also tested.

Nd2O3, Cr2O3, and V2O3 Nanoparticles via Calcination: Synthesis, Characterization, Antimicrobial and Antioxidant Activities

“…1,4benzenedicarboxylic acid and its coordination complexes have great attention in many studies due to their chemical and biological activities [42]. It has bifunctional carboxyl groups and exhibits many coordinate modes; it is common in the preparation of coordination polymers [43,44]. And it has diverse great features of the compound, which are attributed to their ability to chelate with metal ions [45].…”