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Abstract <p>Needle-like Cs<sub>2</sub>Mo<sub>7</sub>O<sub>22</sub> (7×1×1&#xa0;mm) and plated Cs<sub>2</sub>Mo<sub>5</sub>O<sub>16</sub> (4×3×2&#xa0;mm) crystals were obtained by spontaneous crystallization method from Cs<sub>2</sub>Mo<sub>5</sub>O<sub>16</sub>&#xa0;+&#xa0;2%Cs<sub>2</sub>O and Cs<sub>2</sub>Mo<sub>7</sub>O<sub>22</sub>&#xa0;+&#xa0;2%Cs<sub>2</sub>O melts. Peritectic nature of Cs<sub>2</sub>Mo<sub>5</sub>O<sub>16</sub> and Cs<sub>2</sub>Mo<sub>7</sub>O<sub>22</sub> compounds was confirmed by differential scanning calorimetry and thermogravimetric analysis. Cs<sub>2</sub>Mo<sub>5</sub>O<sub>16</sub> and Cs<sub>2</sub>Mo<sub>7</sub>O<sub>22</sub> crystal structures were constructed based on X-ray diffraction data. Unit cell parameters of Cs<sub>2</sub>Mo<sub>5</sub>O<sub>16</sub> and Cs<sub>2</sub>Mo<sub>7</sub>O<sub>22</sub> crystal samples were measured in 0-450&#xa0;°C temperature range and thermal expansion vectors were calculated. Photoluminescence was registered on both Cs<sub>2</sub>Mo<sub>5</sub>O<sub>16</sub> and Cs<sub>2</sub>Mo<sub>7</sub>O<sub>22</sub> samples at 80&#xa0;K.</p>

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Cs2MO5O16 and Cs2Mo7O22: Crystallization, Structural and Thermal Properties

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • V. D. Grigorieva,
  • A. F. Bondareva,
  • M. A. Artemyeva,
  • E. D. Bazanova,
  • A. P. Yelisseyev,
  • A. A. Ryadun,
  • A. B. Kuznetsov

摘要

Abstract

Needle-like Cs2Mo7O22 (7×1×1 mm) and plated Cs2Mo5O16 (4×3×2 mm) crystals were obtained by spontaneous crystallization method from Cs2Mo5O16 + 2%Cs2O and Cs2Mo7O22 + 2%Cs2O melts. Peritectic nature of Cs2Mo5O16 and Cs2Mo7O22 compounds was confirmed by differential scanning calorimetry and thermogravimetric analysis. Cs2Mo5O16 and Cs2Mo7O22 crystal structures were constructed based on X-ray diffraction data. Unit cell parameters of Cs2Mo5O16 and Cs2Mo7O22 crystal samples were measured in 0-450 °C temperature range and thermal expansion vectors were calculated. Photoluminescence was registered on both Cs2Mo5O16 and Cs2Mo7O22 samples at 80 K.