ISSN:
1572-8854
Keywords:
Supercritical
;
etylenediamine
;
silver
;
chalcogenides
Source:
Springer Online Journal Archives 1860-2000
Topics:
Geosciences
,
Physics
Notes:
Abstract The syntheses and structure determinations of CsAg5Se3 (I) and RbAg3Te2 (II) are reported. Both compounds were prepared by using supercritical ethylenediamine at 300°C for 6 days reacting alkali polychalcogenides with silver. For the compound I; tetragonal space group P42/mnm, a = 14.083(2)Å, c = 4.410(2)Å, V = 874.5(4)Å3, Z = 4, D = 6.905 Mg/m3, MoKα radiation, λ = 0.71073, μ = 27.493 mm−1, F(000) = 1568, R = 0.022, Rw = 0.026 for 472 independent reflection. For compound II; monoclinic space group C2/m, a = 17.546(2)Å, b = 4.617(2)Å, c = 9.165(2)Å, β = 113.04(2)°, V = 683.31(12)Å3, Z = 2, D = 6.457 Mg/m3, MoKα radiation, λ = 0.71073, μ = 23.825 mm−1, F(000) = 1128, R = 0.019, Rw = 0.027 for 690 independent reflection.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1009582820690
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