Sonochemical syntheses of a new fibrous-like nano-scale strontium(II) 3D coordination polymer; precursor for the fabrication of a strontium carbonate nanostructure

Title
Sonochemical syntheses of a new fibrous-like nano-scale strontium(II) 3D coordination polymer; precursor for the fabrication of a strontium carbonate nanostructure
Author(s)
주상우Arineh Tahmasian[Arineh Tahmasian]Vahid Safarifard[Vahid Safarifard]알리모잘리
Keywords
TO-CRYSTAL TRANSFORMATION; SOLID-STATE; 2-DIMENSIONAL NETWORK; PRECIPITATION; NANOPARTICLES; NANOCRYSTALS; HYDROGEN; SRCO3; WATER; SRS
Issue Date
201401
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
POLYHEDRON, v.67, pp.81 - 88
Abstract
Nanostructures of a new three-dimensional Sr(II) coordination polymer, {[Sr(H2IDC)(2)(H2O)]center dot(H2O)}(n) (1) (H3IDC = 4,5-imidazoledicarboxylic acid), have been synthesized by a sonochemical process and characterized by field emission scanning electron microscopy (FESEM), X-ray powder diffraction (XRPD), FT-IR spectroscopy and elemental analyses. The effect of the concentration of the starting reagents on the size and morphology of nanostructured compound 1 has also been investigated. Structural determination of compound 1 reveals the Sr(II) ion is eight coordinated, bonded to one nitrogen atom and six oxygen atoms from the H2IDC- ligand and a water molecule. The thermal stability of compound 1 has been studied by thermal gravimetric (TG) and differential thermal analyses (DTA). Compound 1 polymerizes on heating the solid at 210 degrees C under a reversible crystal-to-crystal transformation, to form a new compound that is suggested to be the water-free compound, [Sr(H2IDC)(2)](n) (2), that was characterized by powder Xray diffraction techniques. SrCO3 nanostructures were simply synthesized by the solid-state transformation of compound 1 at 500 degrees C under an air atmosphere. (C) 2013 Elsevier Ltd. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/33593http://dx.doi.org/10.1016/j.poly.2013.08.058
ISSN
0277-5387
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공과대학 > 기계공학부 > Articles
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