Phase transitions in a hydrogen-rich compound:tetramethylsilane

  • High-pressure behavior of tetramethylsilane is investigated by synchrotron powder X-ray diffraction and Raman scattering at pressures up to 30 GPa and room temperature. Our results reveal the analogous phase transitions, though slight hysteresis for the certain phases. A new phase is found to appear at 4.2 GPa due to the disappeared Raman mode. These findings offer the possibility to understand the evolution of the H-H bonding with pressure in such hydrogen-rich compounds.
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QIN Zhen-Xing, TANG Ling-Yun, LIU Jing and CHEN Xiao-Jia. Phase transitions in a hydrogen-rich compound:tetramethylsilane[J]. Chinese Physics C, 2013, 37(9): 098001. doi: 10.1088/1674-1137/37/9/098001
QIN Zhen-Xing, TANG Ling-Yun, LIU Jing and CHEN Xiao-Jia. Phase transitions in a hydrogen-rich compound:tetramethylsilane[J]. Chinese Physics C, 2013, 37(9): 098001.  doi: 10.1088/1674-1137/37/9/098001 shu
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Received: 2012-10-16
Revised: 2013-04-09
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Phase transitions in a hydrogen-rich compound:tetramethylsilane

    Corresponding author: CHEN Xiao-Jia,

Abstract: High-pressure behavior of tetramethylsilane is investigated by synchrotron powder X-ray diffraction and Raman scattering at pressures up to 30 GPa and room temperature. Our results reveal the analogous phase transitions, though slight hysteresis for the certain phases. A new phase is found to appear at 4.2 GPa due to the disappeared Raman mode. These findings offer the possibility to understand the evolution of the H-H bonding with pressure in such hydrogen-rich compounds.

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