MICROWAVE-SPECTRUM OF TETROLYL FLUORIDE
MICROWAVE-SPECTRUM OF TETROLYL FLUORIDE
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DOI：
10.1039/ft9949003023
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发表时间：
1994-10-21
期刊：
影响因子：
--
通讯作者：
GERRY, MCL
中科院分区：
文献类型：
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作者：
HENSEL, KD;GERRY, MCL
首次观测到不稳定分子四丙基氟（但-2-炔基氟）CH3-C=C-COF的微波光谱。由于甲基的内旋，用stark调制微波光谱仪观察到的a型旋转光谱非常密集。利用脉冲射流腔微波傅立叶变换（MWFT）光谱仪测量了9- 17ghz频率范围内的光谱。射流中的冷却除去了除了\m\ = 0和\m\ = 1之外的所有内部旋转状态，允许分配微波频谱。内部旋转的三重势垒已被证实是非常低的[V-3 = 2.20(12) cm(-1)]。
The microwave spectrum of the unstable molecule tetrolyl fluoride (but-2-ynoyl fluoride), CH3-C=C-COF, has been observed for the first time. The a-type rotational spectrum observed with a Stark-modulated microwave spectrometer is Very dense, owing to internal rotation of the methyl group. The spectrum has also been measured in the frequency range 9-17 GHz using a pulsed-jet cavity microwave Fourier-transform (MWFT) spectrometer. cooling in the jet has removed all internal rotation states other than \m\ = 0 and \m\ = 1, permitting assignment of the microwave spectrum. The threefold barrier to internal rotation has been confirmed to be very low [V-3 = 2.20(12) cm(-1)].