Data behind Figure 6.3: Raman spectra of pure CH4, C2H6, C3H8, and N2 in a range of 2300–3000 cm-1

Caption: Raman spectra of pure methane, ethane, propane, and nitrogen at LV equilibrium. (a) shows a view of the spectra in a range of 2300–3000 cm-1, which encompasses (b) the nitrogen (N2) peak at 2327 cm-1 and (c) a suite of peaks associated with methane (CH4), ethane (C2H6), and propane (C3H8) between 2840–3000 cm-1. The nitrogen spectrum was collected at 70 K and the three alkane spectra were taken at 95 K.Excel spreadsheet contains spectra (with backgrounds removed) of pure methane, ethane, propane, and nitrogen between 2300–3000 cm-1.

图注：纯甲烷、乙烷、丙烷及氮气在液-气（LV）平衡条件下的拉曼光谱（Raman spectra）。图(a)展示了2300~3000 cm⁻¹波数范围内的光谱全貌，其中涵盖了(b)位于2327 cm⁻¹处的氮气（N₂）特征峰，以及(c)2840~3000 cm⁻¹区间内与甲烷（CH₄）、乙烷（C₂H₆）和丙烷（C₃H₈）相关的一系列特征峰。氮气光谱的采集温度为70 K，三种烷烃的光谱采集温度均为95 K。本数据集附带的Excel表格包含了2300~3000 cm⁻¹波数范围内、已扣除背景的纯甲烷、乙烷、丙烷及氮气的光谱数据。