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Hexagonal high pressure phase of copper(I)tetraiodomercurate (Cu2HgI4)

Hexagonale Hochdruckphase von Kupfer(I)tetraiodomercurat (Cu2HgI4)

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

Summary

Using a high pressure X-ray camera Cu2HgI4 was subjected at room temperature to pressures up to about 8 GPa. A hexagonal high pressure phase (a=8.28 (2) Å,c=3.40 (0) Å, space group P\(\bar 3\)lm,Z=1) could be detected. This phase shows a reversible transformation with pressure hysteresis. The transition occurs at 7 GPa when the pressure is increased but at 6 GPa when the pressure is decreased.

Zusammenfassung

Cu2HgI4 wurde in einer Hochdruckkamera bei Raumtemperatur mit einem Druck bis zu 8 GPa belastet. Dabei bildete sich eine hexagonale Hochdruckmodifikation (a=8.28 (2) Å,c=3.40 (0) Å, Raumgruppe P\(\bar 3\)lm,Z=1). Für diese Phase wurde eine reversible Umwandlung mit Druckhysterese festgestellt. Mit steigendem Druck findet die Umwandlung bei 7 GPa mit sinkendem Druck jedoch bei 6 GPa statt.

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Authors and Affiliations

  1. Institute of Inorganic Chemistry, University of Vienna, A-1090, Wien, Austria

    Helga Mikler

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  1. Helga Mikler
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Mikler, H. Hexagonal high pressure phase of copper(I)tetraiodomercurate (Cu2HgI4). Monatsh Chem 120, 7–10 (1989). https://doi.org/10.1007/BF00809642

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  • DOI: https://doi.org/10.1007/BF00809642

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