Isothermal Section of the Y2Se3-Cu2Se-GeSe2 System at 870 K and Crystal Structure of the Y3CuGeSe7 Compound

• Autorzy: Lychmanyuk, O. , Gulay, L. , Olekseyuk, I.
• Języki publikacji: EN

Abstrakty

EN

The Y2Se3-Cu2Se-GeSe2 system was investigated using X-ray powder diffraction. The existence of the Y(2+x)/3Cu2-xSe2 (0 _ x _ 1) solid solution (Er2/3Cu2S2 structure type, space group P3) was confirmed in the Y2Se3-Cu2Se section. No compounds were found in the Y2Se3-GeSe2 section. The formation of the Cu8GeSe6 (Cu8GeSe6 structure type, space group P63cm) and Cu2GeSe3 (Cu2GeSe3 structure type, space group Imm2) compounds was confirmed in the Cu2Se-GeSe2 section. The isothermal section of the Y2Se3-Cu2Se-GeSe2 system at 870 K was constructed, based on data of the phase analysis of 54 samples. The formation of new quaternary Y3CuGeSe7 compound (La3CuSiS7 structure type, space group P63, a = 1.02368(8) nm, c = 0.60569(3) nm) was established in the Y2Se3-Cu2Se-GeSe2 system.

Słowa kluczowe

EN

X-ray analysis; isothermal section; crystal structure; phase diagram

• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2006
• Tom: Vol. 80, nr 3
• Strony: 463-469
• Opis fizyczny: Bibliogr. 17 poz.

Twórcy

autor

Lychmanyuk, O.

autor

Gulay, L.

autor

Olekseyuk, I.

• Department of General and Inorganic Chemistry, Volyn State University, Voli Ave 13, 43009 Lutsk, Ukraine

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