Marshall Mark D, Leung Helen O, Wang Kevin, Acha Mbatang Desmond
Department of Chemistry , Amherst College , P.O. Box 5000, Amherst , Massachusetts 01002-5000 , United States.
J Phys Chem A. 2018 May 17;122(19):4670-4680. doi: 10.1021/acs.jpca.8b02550. Epub 2018 May 2.
The rotational spectrum of the chiral tagging candidate molecule, 3,3,3-trifluoro-1,2-epoxypropane (TFO), and of its heterodimer with the argon atom, is obtained using Fourier transform microwave spectroscopy from 5.6 to 18.1 GHz. With a strong, simple rotational spectrum, TFO shows promise for applications in chiral analysis through the conversion of enantiomers into spectroscopically distinct diastereomeric species through noncovalent attachment. The structure of the argon complex of TFO, determined from analysis of the microwave spectrum, is extremely similar to that previously found for ethylene oxide-argon but quite different from that suggested for propylene oxide-argon.
利用傅里叶变换微波光谱仪在5.6至18.1吉赫兹范围内获得了手性标记候选分子3,3,3-三氟-1,2-环氧丙烷（TFO）及其与氩原子形成的异二聚体的转动光谱。TFO具有强烈且简单的转动光谱，通过非共价连接将对映体转化为光谱上不同的非对映体物种，在手性分析应用方面显示出前景。通过对微波光谱的分析确定的TFO氩络合物的结构与先前发现的环氧乙烷 - 氩络合物的结构极为相似，但与环氧丙烷 - 氩络合物所推测的结构有很大不同。
