Abstract Pure rotational transitions of three conformers of epichlorohydrin were observed. Among the three possible conformers expected for this species, spectra of the two chlorine isotopologues, 35Cl and 37Cl, have been detected for the two gauche-conformers, while only the 35Cl isotopologue was detected for the cis-conformer which is much higher in energy. Well resolved chlorine nuclear hyperfine splittings were observed for all the conformers and isotopologues, yielding precisely determined molecular constants.

中文翻译：

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环氧氯丙烷的 FTMW 光谱：检测三个构象异构体

摘要 观察到环氧氯丙烷的三个构象异构体的纯旋转跃迁。在该物种预期的三种可能的构象异构体中，两种氯异构体的光谱 35Cl 和 37Cl，已检测到两个 gauche-conformers，而只有 35Cl isotopologue 检测到能量更高的顺式构象体。对所有构象异构体和同位素体都观察到了解析良好的氯核超精细分裂，产生了精确确定的分子常数。