The Ag2S–HgS–GeS2 system at 670 K and the crystal structure of the Ag2HgGeS4 compound
作者： OV Parasyuk , LD Gulay , LV Piskach , OP Gagalovska , None
DOI: 10.1016/S0925-8388(01)01904-1
关键词: Crystallography 、 Wurtzite crystal structure 、 Crystal structure 、 Tetragonal crystal system 、 Powder diffraction 、 Phase diagram 、 Mineralogy 、 Eutectic system 、 X-ray crystallography 、 Chemistry 、 Space group
摘要: Abstract The isothermal section of the quasi-ternary Ag2S–HgS–GeS2 system at 670 K has been constructed using results X-ray powder diffraction phase analysis and metallography. existence Ag2HgGeS4 Ag6Hg0.82GeS5.82 compounds was confirmed two new quaternary Ag2Hg3GeS6 ∼Ag4HgGe2S7 were found. crystal structure compound investigated diffraction. This crystallizes in wurtzite–stannite (space group Pmn21) with lattice parameters a=0.80247(4), b=0.68684(3) c=0.65955(4) nm. atomic are refined anisotropic approximation to RI=0.0748. tetragonal (a=1.4619(3) c=2.0796(5) nm). P213, a=1.05547 nm) homogeneity range Ag8GeS6–Hg4GeS6 22–31 mol.% Hg4GeS6. is under investigation. diagram quasi-binary Ag2S–HgS eutectic type.
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