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23℃和0.04~2.0GPa下正己烷的Raman光谱研究 被引量:3

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摘要 利用立方氧化锆压腔考察了正己烷在 2 3℃和 0 .0 4~ 2 .0GPa压力下的Raman光谱 ,研究结果表明 ,随着压力的增高 ,在 2 80 0~ 30 0 0cm- 1频率范围内的CH2 和CH3的伸缩振动谱峰均向高波数位移 .这与压力升高使得分子之间和分子内原子之间距离缩短 ,以及C—H键长缩短相符 .在约 1.2GPa压力时 ,Raman谱峰呈现突跃性变化 ,表明此时正己烷发生了相变 .这与显微镜下观察其由液相转变为固相的现象一致 .
机构地区 北京大学地质系
出处 《自然科学进展》 北大核心 2004年第12期1442-1446,共5页
基金 国家自然科学基金重大项目 国家自然科学基金项目资助 (批准号 :1 0 2 990 4 0 40 1 730 1 9)
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