Hydrothermal synthesis and crystal structure of four lead(II) coordination polymers with a carboxylate functionalized imidazophenanthroline derivative ligand

Sonochemical synthesis of a novel nanoscale 1D lead(II) [Pb2(L)2(I)4]n coordination Polymer, survey of temperature, reaction time parameters

One new lead(II) coordination supramolecular complex (CSC) (1D), [Pb₂(L)₂(I)₄]_n, L  =  C₄H₆N₂ (1-methyl imidazole), has been synthesized under different experimental conditions. Micrometric crystals (bulk) or nano-sized materials have been obtained depending on using the branch tube method or sonochemical irradiation. All materials have been characterized by scanning electron microscopy (SEM), powder X-ray diffraction (PXRD) and FT-IR spectroscopy. Single crystal X-ray analyses on complex 1 showed that Pb²⁺ ion is 4-coordinated. Topological analysis shows that the complex 1 is 2,3,5C2 net. Finally, the role of reaction time and temperature on the growth and final morphology of the structures obtained by sonochemical irradiation have been studied.

Controllable synthesis of four series of lanthanide coordination polymers: synthesis, structures, luminescent and magnetic properties

Four series of lanthanide coordination polymers based on 2-(2-sulfophenyl)imidazo(4,5-f)(1,10)-phenanthroline and glutaric acid have been hydrothermally synthesized by changing the molar ratio and the pH value.