【摘要】 利用立方氧化锆压腔研究了甲醇在温度301K、压力169.2～713.8MPa下C—H伸缩振动ν2835的拉曼特征,实验结果表明:在试验的压力范围内甲醇稳定,其拉曼位移和压力具有很好的线性关系。加上常压下的数据,拟合后得出压力与甲醇2835cm-1拉曼线频率位移的关系为:p=-3.5089[(Δνp)2835]2+135 17(Δνp)2835+54 397(0 1～713 8MPa)。因此在实验的压力范围内甲醇作为压标非常合适。更多还原

【Abstract】 This paper mainly studies Raman spectroscopy of C—H stretching vibrational mode of methanol at 2 835 cm^-1 from 169.2 up to 713.8 MPa under the temperature of 301 K using cubic zirconium oxide Anvil Cell.The result shows that methanol is stable at the experimental pressure,and the Raman shift of methanol at 2 835 cm^-1 shows a linear dependence with pressure.The correlation between pressure and frequency shift of the 2 835 cm^-1 Raman line of methanol is described by p=-3.508 9·[（Δν_p）_{2 835}]² + 135.17（Δν_p）_{2 835}+ 54.397,where 0.1<p（MPa）≤ 713.8.So methanol can be used as a reliable pressure gauge in high hydrostatic experiments.更多还原