Synthesis and crystal structure determination of the new olivine-type compound Mn2SnSe4

Authors

  • C. Chacón Catedras Conacyt-Instituto Mexicano del Petroleo, Centro de Tecnologia para Aguas Profundas, Veracruz, Mexico.
  • P. Delgado-Niño Facultad de Ingenieria, Universidad Libre, Av. Cr 70 53-40, Bogota, Colombia.
  • G.E. Delgado Laboratorio de Cristalografía, Departamento de Química, Facultad de Ciencias, Universidad De Los Andes, Mérida, Venezuela http://orcid.org/0000-0003-3970-2387

DOI:

https://doi.org/10.31349/RevMexFis.66.30

Keywords:

Olivines, Chacogenides, Semiconductors, Chemical synthesis, Crystal structure, X-ray powder diffraction, Rietveld refinement

Abstract

The Mn2SnSe4 compound was synthesized by the melt and annealing technique and its structure was refined by the Rietveld method using X-ray powder diffraction data. This compound crystallizes in the olivine-type structure with unit cell parameters a = 12.9028(2) Å, b = 7.9001(1) Å, c = 6.5015(1) Å, V = 662.72(2) Å3 in the orthorhombic space group Pnma (Nº 62). This olivine structure can be described from a hexagonal close-packing of selenium atoms where manganese atoms occupy ½ of the octahedral sites while thin atoms lay in ⅛ of the tetrahedra.

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Published

2019-12-28

How to Cite

[1]
C. Chacón, P. Delgado-Niño, and G. Delgado, “Synthesis and crystal structure determination of the new olivine-type compound Mn2SnSe4”, Rev. Mex. Fís., vol. 66, no. 1 Jan-Feb, pp. 30–34, Dec. 2019.