Mechanochemical solid state architectonics on Lead(II) coordination polymer by anion-exchange

New 2D lead(II) coordination polymers, Pb(4-bpdh)(CH3COO)(NO3)] n (1) and [Pb(4-bpdh)(ClO4)(NO3)](n) (2), 4-bpdh = 2,5-bis(4-pyridyl)-3,4-diaza-2,4-hexadiene, were prepared and characterized by single-crystal X-ray diffraction. Compound 3 with formula [Pb(4-bpdh)(NO3)(2)(H2O)](n) (3) was obtained by solid state mechanochemical reaction of the compounds 1 and 2 via anion-exchange process. These conversions are reversible and the grinding of compound 3 with CH3COO and ClO4 ions led to the formation of the compounds 1 and 2, respectively. Thermal decomposition of the compounds 1-3 results in the formation of different metallic composites. The composites were characterized by X-ray powder diffraction (XRD) and size and morphology of them were investigated by scanning electron microscopy (SEM).

Automated summary

New 2D lead(II) coordination polymers were synthesized and characterized through solid state mechanochemical reaction and anion-exchange process, with the reactions being reversible. Thermal decomposition of these compounds resulted in the formation of different metallic composites, whose size and morphology were investigated using X-ray powder diffraction and scanning electron microscopy.