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Neue quaternäre Chalkogenohalogenide

New quaternary chalcogeno halides

  • Anorganische Und Physikalische Chemie
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Monatshefte für Chemie / Chemical Monthly Aims and scope Submit manuscript

Abstract

The quaternary chalcogeno halides AgHgSI, AgHgSBr and CuHgSI have been synthesized by annealing mixtures of silver (copper) halides and mercury sulphide. AgHgSI decomposes peritectoidally at 593±3 K and crystallizes in the orthohombic system with lattice constants ofa=772.3 (3),b=847.7 (3) andc=707.3 (3) pm. The phase diagram AgI-HgS resembles the AgI-Ag2S system closely. Contrary to the literature the only stable compound in this system is AgHgSI. The previously mentioned Ag2HgSI2 is metastable. The reported compound Ag2HgSBr2 could not be synthesized. The substitution of Hg2+ by Cd2+ in CuHgSI leads to a red phase Cu2Cd3S2I4 which crystallizes in the wurtzite type structure with lattice parameters ofa=424.7 (1) andc=695.2 (1) pm.

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Blachnik, R., Dreisbach, H.A. Neue quaternäre Chalkogenohalogenide. Monatsh Chem 117, 305–311 (1986). https://doi.org/10.1007/BF00816524

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  • DOI: https://doi.org/10.1007/BF00816524

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