论文标题
从毫米波长到红外域的氘化 - 乙二醇（DC $ _3 $ n）的广泛的RO振动分析（DC $ _3 $ N）
Extensive ro-vibrational analysis of deuterated-cyanoacetylene (DC$_3$N) from millimeter-wavelengths to the infrared domain
论文作者
论文摘要
蓝乙烯是最简单的氰基元，是在各种各样的天文来源中通常观察到的丰富星际分子。尽管它是恒星形成过程进化的潜在示踪剂，但与主要的同位素学相比，在实验室中观察到的绿色乙二醇的氘化形式的观察到较少，研究较少。在这里，我们报告了迄今为止从毫米域到红外区域的DC $ _3 $ N的最广泛的光谱表征。分别使用毫米波频率调制和傅立叶变换红外光谱仪记录了旋转和RO振动光谱。所有具有高达1015 cm $^{ - 1} $的能量的振动状态均已在合并的拟合度中进行了分析，在这种拟合中，由于肛门共振引起的效果已得到充分考虑。该分析包含超过6500个不同的过渡频率，从中所有振动能量都以良好的精度确定为许多基本，泛音和组合状态。这项工作为DC $ _3 $ n的天文观察提供了全面的线路目录
Cyanoacetylene, the simplest cyanopolyyne, is an abundant interstellar molecule commonly observed in a vast variety of astronomical sources. Despite its importance as a potential tracer of the evolution of star-forming processes, the deuterated form of cyanoacetylene is less observed and less studied in the laboratory than the main isotopologue. Here, we report the most extensive spectroscopic characterization of DC$_3$N to date, from the millimeter domain to the infrared region. Rotational and ro-vibrational spectra have been recorded using millimeter-wave frequency-modulation and Fourier-transform infrared spectrometers, respectively. All the vibrational states with energy up to 1015 cm$^{-1}$ have been analyzed in a combined fit, where the effects due to anharmonic resonances have been adequately accounted for. The analysis contains over 6500 distinct transition frequencies, from which all the vibrational energies have been determined with good precision for many fundamental, overtone, and combination states. This work provides a comprehensive line catalog for astronomical observations of DC$_3$N
