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The new ternary niobium polysulfide K 4 Nb 2 S 14 was prepared at low temperatures via the reactive flux method. It crystallizes in the monoclinic space group P2 1 /c with unit cell dimensions of a=21.656(2), b=7.8541(9), c=12.455(1) Å, β=99.22(1)° and Z=4. The crystal structure consists of well-separated K + and [Nb 2 S 14 ] 4− ions...
The thermochemical reactivity of the ternary compound ZrSiTe has been studied. The material is stable in inert or dry oxidizing atmosphere but is highly sensitive to moisture, i.e. it shows a spontaneous redox reaction with O 2 /H 2 O. During the reaction the volume of the sample increases drastically by a factor of about 20. The volume increase is not caused by an intercalation...
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