论文标题
同位素黄烷的旋转光谱，$ c $ -c $ _2 $ h $ _4 $ o
Rotational spectroscopy of isotopic oxirane, $c$-C$_2$H$_4$O
论文作者
论文摘要
我们研究了158 GHz和1093 GHz的选择区域中天然同位素组成样品中的黄氧烷的旋转光谱。为了促进在太空中搜索它们的主要重点，对具有$^{13} $ c或一个$^{18} $ O的同位素的调查是主要重点。我们还研究了主要的同位素物种，主要是在植物和庞大的代表中研究沃森的A和S降低的性能。即使Oxirane是一种相当不对称的碎片转子，但iii $^l $表示的降低并没有产生令人满意的拟合度，正如其他分子较早观察到的那样。其他三种组合彼此之间的质量相似。 I $^r $表示的减少所需的两个参数要比两个降低拟合少两个。
We studied the rotational spectrum of oxirane in a sample of natural isotopic composition in selected regions between 158 GHz and 1093 GHz. Investigations of the isotopologs with one $^{13}$C or one $^{18}$O were the primary focus in order to facilitate searches for them in space. We also examined the main isotopic species mainly to look into the performance of Watson's A and S reductions both in an oblate and in a prolate representation. Even though oxirane is a rather asymmetric oblate rotor, the A reduction in the III$^l$ representation did not yield a satisfactory fit, as was observed frequently earlier for other molecules. The other three combinations yielded satisfactory fits of similar quality among each other; the A reduction in the I$^r$ representation required two parameters less than both S reduction fits.
