Microwave spectra of molecules of astrophysical interest. XVIII. Dimethyl ether
Microwave spectra of molecules of astrophysical interest. XVIII. Dimethyl ether
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天体物理学感兴趣的分子的微波光谱。
DOI：
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发表时间：
1979
期刊：
影响因子：
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通讯作者：
H. Dreizler
中科院分区：
文献类型：
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作者：
F. J. Lovus;H. Lutz;H. Dreizler
对二甲醚(甲氧基甲烷)的微波光谱进行了评述，并通过计算对其进行了补充，其中包括分子哈密顿量中的内旋和离心力扭曲的贡献。这篇综述的主要目的是提供适用于分子射电天文学的微波光谱跃迁，用于二甲醚最丰富的同位素形式12CH316O12CH3的基态振动转动光谱。虽然包括了所有测量的转动跃迁，但预测的跃迁频率限制在1 GHz到300 GHz范围内的J？15。为了对二甲醚的实验室研究提供完整的总结，还列出了丰度较低的同位素物种和激发扭态的旋转常数，并参考了所有已报道的旋转研究。
The microwave spectra of dimethyl ether (methoxymethane) is critically reviewed and supplemented through calculations which include the contributions of internal rotation and centrifugal distortion in the molecular Hamiltonian. The primary objective of this review is to provide microwave spectral transitions applicable to molecular radio astronomy for the ground vibrational state rotational spectrum of the most abundant isotopic form of dimethyl ether, 12CH316O12CH3. While all measured rotational transitions are included, the predicted transition frequencies were limited to J?15 in the range 1 GHz to 300 GHz. In order to provide a complete summary of the laboratory studies on dimethyl ether, the rotational constants of the less abundant isotopic species and excited torsional states are also tabulated and all reported rotational studies are referenced.