Isothermal Sections of teh Y2Se3-Cu2Se-Sn(Pb)Se Systems at 870 K and Crystal Structure of teh Y4.2Pb0.7Se7 Compound

• Autorzy: Shemet V. , Gulay L. , Olekseyuk L.
• Języki publikacji: EN

Abstrakty

EN

Interactions between the components in theY2Se3-Cu2Se-SnSe andY2Se3-Cu2Se-PbSe systems at 870 K were determined using X-ray powder diffraction. The existence of the compound with composition YCuSe2-Y2/3Cu2Se2 (Er2/3Cu2S2 structure type, space group P3, a = 0.40660-0.40370(1) nm, c = 0.64640-0.65906(2) nm) was confirmed in the Y2Se3-Cu2Se section. The existence of the compounds Y6Pb2Se11 (Y6Pb2Se11 structure type, space group Cmcm, a = 0.40620(8) nm, b = 1.3467(2) nm, c = 3.7624(7) nm) andY4.2Pb0.7Se7 (Y5Se7 structure type, space group Cm,a = 1.3357(1) nm, b = 0.40469(3) nm, c = 1.22356(8) nm, beta = 104.529(3)-graduate) in the Y2Se3-PbSe section was observed. No quaternary compounds exist in the Y2Se3-Cu2Se-SnSe system. The existence of the compounds Y3.33CuPb1.5Se7 (Y3.33CuPb1.5S7 structure type, space group Cm, a = 1.35675(7) nm, b = 0.40959(2) nm, c = 1.26026(6) nm,beta = 104.661(2)graduate) and YCuPbSe3 (beta-BaLaCuSe3 structure type, space group Pnma, a = 1.05438(5) nm, b= 0.40524(2) nm, c = 1.33840(5) nm) in the Y2Se3-Cu2Se-PbSe system was confirmed.

Słowa kluczowe

EN

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

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2005
• Tom: Vol. 79 / nr 8
• Strony: 1315--1326
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Shemet V.

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

autor

Gulay L.

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

autor

Olekseyuk L.

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

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