环庚烷的高压拉曼光谱研究

高玲玲; 马艳梅; 刘丹; 郝健; 金云霞; 王峰; 王秋实; 邹广田; 崔启良

doi:10.11858/gywlxb.2008.02.013

环庚烷的高压拉曼光谱研究

doi: 10.11858/gywlxb.2008.02.013

1.
吉林大学超硬材料国家重点实验室，吉林长春 130012；
2.
吉林大学农学部，吉林长春 130062

详细信息

通讯作者:
崔启良

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出版历程
- 收稿日期: 2007-12-26
- 修回日期: 2008-01-31
- 发布日期: 2008-06-05

Raman Spectra Characterization of Cycloheptane under High Pressure

1.
National Laboratory of Superhard Materials, Jilin University, Changchun 130012, China;
2.
Department of Agronomy, Jilin University, Changchun 130062, China

More Information

Corresponding author: CUI Qi-Liang

摘要

摘要: 利用金刚石对顶砧（DAC）装置产生高压，在室温下对环庚烷进行了高压原位拉曼光谱研究。实验的最高压力是17.00 GPa。研究结果表明，在实验的压力范围内，室温常压下为液态的环庚烷在0.53 GPa发生了液-固相变；在3.45~5.58 GPa压力区间，环庚烷的拉曼频移随压力变化的曲线和拉曼峰的半高宽随压力的变化曲线都出现了拐点，由此判断，环庚烷可能发生了固-固相变。
- 环庚烷 /
- 拉曼光谱 /
- 高压 /
- 相变 /
- 金刚石对顶砧
Abstract: In situ Raman spectra of cycloheptane have been characterized under high pressure generated by diamond anvil cell (DAC) at room temperature. The pressure is up to 17.00 GPa. With the increase of pressure, the cycloheptane experienced the liquid-solid phase transition at 0.53 GPa. During 3.45~5.58 GPa, both the curve of Raman frequence-pressure and FWHM-pressure presented inflexions, indicating a potential solid-solid phase transition of cycloheptane.
- cycloheptane /
- Raman spectra /
- high-pressure /
- phase transition /
- diamond anvil cell (DAC)

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