Nanoparticles of a new zinc(II) coordination polymer: synthesis, characterization, thermal, and structural studies

Design and synthesis of coordination polymers with chelated units and their application in nanomaterials science

“…Thus, a ZnO nanostructure was prepared by thermolysis of nanoparticles of a Zn(II) CP, [Zn(L)(CH 3 COO) 2 ] n (L ¼ 2,2 0 -diamino-5,5 0 -dimethyl-4,4 0 -bithiazole), at 500 C under air. 342 Saving macroscopic MOFs structure during their thermal transformation may serve as a promising strategy in the design of nanomaterials with predetermined properties and morphology. 343 and Mn 2 (L 0 ) (L 0 is 2,5-dihydroxyterephthalate) 344 by varying the temperature and the atmosphere leads to the formation of a series of nanoporous manganese oxides with different degrees of oxidation: MnO, Mn 3 O 4 , Mn 5 O 8 , and Mn 2 O and preserving the original morphology of the starting precursor (Fig.…”

Fe(Me2-bpy)2(NCSe)2spin-crossover micro- and nanoparticles showing spin-state switching above 250 K

“…23 One interesting result observed here is the formation of a crystalline material that is derived from a coordination bond cleavage, diffusion of ligand in the solid state, rearrangement of the coordination sphere and nucleation of the new phase. It is well established that in contrast to the methods developed for the elaboration of oxide nanostructures, 24,25 softer thermal conditions may lead either to a molecular rearrangement via the migration of ligands between the coordination spheres of two metal ions, 26 or to a coordination polymer via partial decomposition and a rearrangement of halide (or pseudohalide like NCX) ions to form bridges between metal ions. 27 Finally, Guionneau has identified for some particular spin-crossover materials, a relationship between the solid-state crystallinity and thermal treatment.…”

Genetic Algorithms For Structure Prediction Of New Bithiazole Molecular Crystals Methodology And Applications

“…Bithiazoles and their derivatives are of great interest because of their potential applications such as ligands for metals [22,23] and biological activities of their complexes, which show antibacterial, antifungal, antiflammatory, and antitumeractivities [24][25][26][27]. They are also useful as electrochromic materials, photoluminescence, and semiconductor devices [28][29][30][31][32][33][34]. Geometry optimization of bithizaole molecules were perform using the B3LYP hybrid density functional method of theory with the STO-3g, 3-21G and 6-311G** basis sets.…”