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Synthesis and Rietveld refinement of skutterudite-related phase CoSn1.5Te1.5

Published online by Cambridge University Press:  29 February 2012

F. Laufek ,
J. Návrátil  and
V. Goliáš
F. Laufek*
Affiliation:
Czech Geological Survey, Geologická 6, 152 00 Praha 5, Czech Republic
J. Návrátil
Affiliation:
Joint Laboratory of Solid State Chemistry of IMC AS ČRand University of Pardubice, Studentská 84, 532 10 Pardubice, Czech Republic
V. Goliáš
Affiliation:
Faculty of Science, Charles University, Albertov 6, 128 43 Praha 2, Czech Republic
*
a)Author to whom correspondence should be addressed. Electronic mail: frantisek.laufek@geology.cz
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Abstract

Crystal structure of the skutterudite-related phase has been refined by the Rietveld method from X-ray powder diffraction data. Refined crystallographic data for CoSn1.5Te1.5 are a=12.9063(2) Å, c=15.7837(3) Å, V=2276.89(4) Å3, space group R3 (No. 148), Z=24, and Dx=7.50 g/cm3. The crystal structure of the title compound can be viewed as a modification of the skutterudite structure (CoAs3)—it is isostructural with CoGe1.5Te1.5 and IrSn1.5Te1.5. In the structure of CoSn1.5Te1.5, the Sn and Te atoms exhibit long-range ordering, which results in lowering of the original cubic symmetry of the skutterudite structure to the trigonal one.

Keywords

CoSn1.5Te1.5X-ray powder diffraction dataRietveld refinementskutterudite
Type
Technical Articles
Information
Powder Diffraction , Volume 23 , Issue 1 , March 2008 , pp. 15 - 19
Copyright
Copyright © Cambridge University Press 2008

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References

Bos, J. W. G., and Cava, R. J. (2007). “Synthesis, Crystal Structure and Thermoelectric Properties of IrSn1.5Te1.5-based Skutterudites,” Solid State Commun. SSCOA4 141, 38–41.CrossRefGoogle Scholar
Emsley, J. (1989). The Elements (Oxford U. P., Oxford), p. 256.Google Scholar
Fleurial, J. P., Caillat, T., and Borshchevsky, A. (1995). “Thermoelectric materials with the Skutterudite structure: New results,” Proceedings of the 14th International Conference on Thermoelectric, Saint Petersburg, Russia, June, p. 231.Google Scholar
ICDD (2002). “Powder diffraction file,” International Centre for Diffraction Data, edited by McClune, Frank, 12 Campus Boulevard, Newton Square, PA 1907 3-3272.Google Scholar
ICSD (2006). “Inorganic Crystal Structure Database,” Version 2006-02, Fachinformationszentrum, Karlsruhe, Germany and The National Institute of Standards and Technology (NIST), Gaithersburg, Maryland.Google Scholar
Kraus, W., and Nolze, G. (2000). Powder Cell for Windows, Version 2.4 (Computer Software), BAM, Berlin, Germany.Google Scholar
Laufek, F., Navrátil, J., and Plášil, J. (2007). “Synthesis and Structure of CoGeTe and CoSn1.5Te1.5,” Mater. Struct. Chem., Biol., Phys. and Technol.: Bull. Czech Slovak Crystallogr. Assoc. 14, 143–144.Google Scholar
Nagamoto, Y., Tanaka, K., and Koyanagi, T. (1997). “Thermoelectric properties of the skutterudite-related phase CoSn1.5Te1.5,” Proceedings of the 16th International Conference on Thermoelectric, Dresden, Germany, August, pp. 330–333.Google Scholar
Partik, M., Kringe, C., and Lutz, D. H. (1996). “X-Ray Structure Determination of Pseudomerohedrally Twinned CoGe1.5S1.5 and CoGe1.5Se1.5, Absorption Correction,” Z. Kristallogr. ZEKRDZ 211, 304–312.CrossRefGoogle Scholar
Rodríguez-Carvajal, J. (1990). “FullProf: A program for Rietveld refinement and pattern matching analysis,” Satellite Meeting on Powder Diffraction of the XV Congress of the IUCr, Toulouse, France, p. 127.Google Scholar
Schmidt, Th., Kliche, G., and Lutz, H. D. (1987). “Structure Refinement of Skutterudite-Type Cobalt Triantimonide, CoSb3,” Acta Crystallogr., Sect. C: Cryst. Struct. Commun. ACSCEE 10.1107/S0108270187090590 43, 1678–1679.CrossRefGoogle Scholar
Smalley, A., Qiyin, L., Johnson, D. C., Martin, J., and Nolas, G. S. (2005). “The synthesis and characterization of CoSn1.5Te1.5, CoSn1.5Se1.5, and partially filled CoSn1.5Se1.5,” Proceedings of Materials Research Society 2005 Fall Meeting, Symposium F, Boston, p. 137.Google Scholar
Vaqueiro, P., Sobany, G. G., Powell, A. V., and Knight, K. S. (2006). “Structure and Thermoelectric Properties of the Ordered Skutterudite CoGe1.5Te1.5,” J. Solid State Chem. JSSCBI 179, 2055–2061.CrossRefGoogle Scholar