JOURNAL OF CHILEAN CHEMICAL SOCIETY

Vol 61 No 2 (2016): Journal of the Chilean Chemical Society
Original Research Papers

FOUR-DIMENSIONAL INCOMMENSURATELY MODULATED STRUCTURE OF THULIUM POLYPHOSPHATE

Fa-xue Ma
Department of Physics and Chemistry, Henan Polytechnic University, Jiaozuo, Henan 454000
Dan Zhao
Department of Physics and Chemistry, Henan Polytechnic University, Jiaozuo, Henan 454000
Hong Yang
Department of Physics and Chemistry, Henan Polytechnic University, Jiaozuo, Henan 454000
Peng-Fei Chen
Department of Physics and Chemistry, Henan Polytechnic University, Jiaozuo, Henan 454000
Rui-Juan Yang
Department of Physics and Chemistry, Henan Polytechnic University, Jiaozuo, Henan 454000
Shan-Xuan Wu
Department of Physics and Chemistry, Henan Polytechnic University, Jiaozuo, Henan 454000
Vol 61, No 2 (2016): Journal of the Chilean Chemical Society
Published June 10, 2016
Keywords
  • Crystal growth,
  • Crystal structure,
  • X-ray diffraction,
  • Polyphosphate,
  • Incommensurately modulated structure
How to Cite
Ma, F.- xue, Zhao, D., Yang, H., Chen, P.-F., Yang, R.-J., & Wu, S.-X. (2016). FOUR-DIMENSIONAL INCOMMENSURATELY MODULATED STRUCTURE OF THULIUM POLYPHOSPHATE. Journal of the Chilean Chemical Society, 61(2). Retrieved from https://www.jcchems.com/index.php/JCCHEMS/article/view/32

Abstract

Single crystal of rare-earth polyphosphate Tm(PO3)3has been grown under high temperature molten-salt method and structurally characterized by single crystal X-ray diffraction analysis. Using the four-dimensional superspace formalism for aperiodic structures, we performed the crystal structure refinement of Tm(PO3)3as (3+1)-dimensional incommensurately modulated structure with monoclinic superspace group C2/c(0, 0.358, 0)s0 and a = 14.0620 (12) Å, b = 6.6612 (6) Å, c = 10.0191 (9) Å, β = 127.6043 (9)0, V = 743.51 (11) Å3, Z = 4, Mr= 405.8, Dc= 3.626 g/cm3, F(000) = 744, μ(moKa)= 12.60 mm-1, R = 0.048 and ωR = 0.050. The structure features infinite chains of corner-sharing PO4tetrahedra which are affected by positional modulation running along the b-axis. The final structure model was reasonable and did not show any unusual features.

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