Porous activated carbon was modified with (1E,2E)-1,2-bis(pyridin-4-ylmethylene)hydrazine (M) and (1E,2E)-1,2-bis(pyridin-3-ylmethylene)hydrazine (SCH-4).

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The preparation of micro hexagonal-rods of a new 1D polymeric lead(II) complex containing the Pb 2 -(l-N 3 ) 2 motif, [Pb(dmp)(N 3 ) 2 ] n (dmp is the abbreviation of 2,9-dimethyl-1,10-phenanthroline) by the sonochemical method is described. The new microcrystal is characterized by scanning electron microscopy, X-ray diffraction (XRD), elemental analyses and infrared spectroscopy. A single crystalline material is obtained by applying a heat gradient applied to a solution of the reagents. The single-crystal XRD analyses show that the coordination number for the Pb(II) ions is six, PbN6, with ''stereo-chemically active'' electron lone pairs and the coordination sphere being hemidirected. The single-crystal X-ray data show the chains of [Pb(dmp)(N 3 ) 2 ] n interact with each other through the p-p stacking interactions, which create a 3D framework.

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