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Ternary chalcogenide systems X: The quasiternary system Ag2S-Cu2S-P4S10

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Abstract

The quasiternary system Ag2S-Cu2S-P4S10 was investigated by DTA- and X-ray measurements. No quasiternary compound was found. The phase diagram of the constituent binary Cu2S-P4S10 is given for the first time. It contains the compounds Cu7PS6, Cu3PS4 and (CuPS3)n. The previously reported Cu4P2S7 was not observed. Thermal and X-ray data of these compounds are given. The compounds Cu7PS6 + Ag7PS6 and Cu3PS4 + Ag3PS4 are completely miscible in the solid state.

Zusammenfassung

Mittels DTA und Röntgendiffraktion wurde das quasiternäre System Ag2S-Cu2S-P4O10 untersucht. Es konnte keine quasiternäre Verbindung gefunden werden. Erstmalig wurde das Phasendiagramm für das binäre Teilsystem Cu2S-P4O10 gegeben. Es enthält die Verbindungen Cu7PS6, Cu3PS4 und (CuPS3)n. Das unlängst beschriebene Cu4P2S7 wurde nicht beobachtet. Thermoanalytische und röntgenografische Daten dieser Verbindungen werden gegeben. Die Verbindungen Cu7PS6 + Ag7PS6 und Cu3PS4 + Ag3PS4 sind im festen Aggregatzustand unbegrenzt mischbar.

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Authors and Affiliations

  1. Anorganische Chemie Universität Osnabrück, Barbarastr 7, D 4500, Osnabrück, Germany

    R. Blachnik, B. Gather & E. Andrae

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  1. R. Blachnik
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  2. B. Gather
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  3. E. Andrae
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Additional information

Dedicated to Professor Dr. H. J. Seifert on the occasion of his 60th birthday

IX: B. Legendre, B. Gather and R. Blachnik, Z. Metallic., 71 (1980) 588.

We wish to thank the DFG (SFB 225) and the Fonds der Chemischen Industrie for support.

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Blachnik, R., Gather, B. & Andrae, E. Ternary chalcogenide systems X: The quasiternary system Ag2S-Cu2S-P4S10 . Journal of Thermal Analysis 37, 1289–1298 (1991). https://doi.org/10.1007/BF01913862

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