Thermal analysis, X-ray diffraction, spectroscopy studies and magnetic properties of the new compound Tl2HAsO4.Te(OH)6

Authors

  • I. Bechibani Inorganic Chemistry Laboratory, University of Sfax, Faculty of Sciences of Sfax
  • H. litaiem Inorganic Chemistry Laboratory, University of Sfax, Faculty of Sciences of Sfax
  • S. Garcia Granda Physical and Analytical Chemistry Laboratory, Faculty of Chemistry, University of Oviedo
  • M. Dammak Inorganic Chemistry Laboratory, University of Sfax, Faculty of Sciences of Sfax
  • L. Ktari Inorganic Chemistry Laboratory, University of Sfax, Faculty of Sciences of Sfax

DOI:

https://doi.org/10.24297/jac.v7i3.2384

Keywords:

C.X ray-diffraction, C. IR, C. Raman, C. DSC, D. Crystal structure

Abstract

The Tl2HAsO4.Te(OH)6 (TlAsTe) compound crystallizes in the triclinic system P1 with unit cell parameters: a= 7.100(10) Å, b= 7.281(13) Å, c= 8.383(11) Å, α= 76.91(1)°, β= 87.16(1)°, γ= 66.96(2)°, Z= 2 and V= 388.19(1) Å3. This new structure can be described as a lamellar one with the atomic arrangement being built by planes of Te(OH)6 octahedra alterning with planes of arsenate tetrahedra. Raman and infrared spectra recorded at room temperature confirm the presence of As  and Te  groups and characterize the hydrogen bonds present in the crystal lattice. Differential scanning calorimerty shows the presence of three-phase transitions at 396 K, 408 K and 430 K present in the title compound. Typical thermal analyses, such as differential thermal analysis and thermogravimetry show that the decomposition of this material starts at about T= 445 K. Magnetization curve of Tl2HAsO4·Te(OH)6 substance have revealed a diamagnetic response overall temperature range studied.

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Published

2011-12-17

How to Cite

Bechibani, I., litaiem, H., Granda, S. G., Dammak, M., & Ktari, L. (2011). Thermal analysis, X-ray diffraction, spectroscopy studies and magnetic properties of the new compound Tl2HAsO4.Te(OH)6. JOURNAL OF ADVANCES IN CHEMISTRY, 7(3), 1399–1412. https://doi.org/10.24297/jac.v7i3.2384

Issue

Vol. 7 No. 3 (2014)

Section

Articles

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Creative Commons License All articles published in Journal of Advances in Linguistics are licensed under a Creative Commons Attribution 4.0 International License.