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X-ray diffraction (XRD) and differential thermal analysis (DTA) methods are used to analyze tetramethylammonium hexafluoridozirconate of the composition [N(CH3)4]2ZrF6. In the temperature range between 96-110 °C, the crystals undergo a reversible phase transition from the low-temperature trigonal modification (space group R3 ) to the high-temperature cubic modification (space group Fm3m). The cubic...
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