sonochemical synthesis of two new nano-structured lead(ii) and mercury(ii) coordination polymers

two new nano-sized lead(ii) and mercury(ii) coordination polymers, [pb(2-bpdh)(no3)2(h2o)]n(1); (2-bpdh = 2,5-bis(2-pyridyl)-3,4-diaza-2,4-hexadiene)} and [hg(4-bpdb)(scn)2]n (2); (4-bpdb= 1,4-bis(4-pyridyl)-3,4-diaza-1,3-butadiene) were synthesized by a sonochemical method. the structure of 1 may be considered coordination polymer of lead(ii) and single crystal x–ray analysis of compound 2reveals that consists of one-dimensional zigzag chains formed by bridging scn- and 4-bpdb ligand. the new nano-structures of coordination polymers were characterized by scanning electron microscopy, powder x-ray diffraction, elemental analyses and ir spectroscopy. the size of the samples was about 70 nm and 60 nm for compound  1 and  2, respectively.