Holodirected Coordination Sphere Around Lead(II) in Three-Dimensional Polymeric Structure; New Precursor for Preparation of Lead Oxide Sulfate Nano-Structures

Abstract

A new lead(II) three-dimensional coordination polymer, [Pb <inf>2</inf>(μ<inf>3</inf>-ANS)<inf>2</inf>(μ<inf>2</inf>-Cl) <inf>2</inf>(H<inf>2</inf>O)<inf>2</inf>]<inf>n</inf> (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 Pb<inf>2</inf>(SO <inf>4</inf>)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). © 2014 Elsevier B.V. All rights reserved.