Holodirected coordination sphere around lead(II) in three-dimensional polymeric structure; New precursor for preparation of lead oxide sulfate nano-structures

•A new lead(II) three-dimensional polymer has been synthesized and characterized.•The Pb ion has distorted octahedral coordination sphere with holodirected structure.•Instead of PbO, Pb2(SO4)O nano-particles was prepared from calcination of it.

A new lead(II) three-dimensional coordination polymer, [Pb2(μ3-ANS)2(μ2-Cl)2(H2O)2]n (1) [ANS− = 4-amino-1-naphthalenesulfonate], has been synthesized and characterized. The single-crystal X-ray data of compound 1 shows only one type of PbII ion with coordination number of six, the lead atom has distorted octahedral coordination sphere containing stereo-chemically inactive electron lone pair. The thermal stability of 1 was studied by TG-DTA (Thermo gravimetric and differential thermal analyses). Regular morphology of Pb2(SO4)O nano-particle was prepared from fine powders of compound 1 by calcination process at 700 °C. This nano-structure was characterized by XRD (X-ray powder diffraction) and SEM (Scanning electron microscopy).

Graphical abstractA new lead(II) three-dimensional coordination polymer has been synthesized and characterized. The single-crystal X-ray data of compound 1 shows only one type of PbII ion with the coordination number of six, the lead atom has distorted octahedral coordination sphere containing stereo-chemically inactive lone pair. Instead of PbO, Pb2(SO4)O nano-particles with regular morphology was prepared from calcination process of it.Figure optionsDownload full-size imageDownload as PowerPoint slide