Tunable diode laser study of the ν2 infrared band of fluoroketene: Confirmation of anomalously low C=O stretching frequency
作者:Douglas K. Russell、Ralf Wesendrup
DOI:10.1063/1.1499721
日期:2002.9.15
short-lived molecule fluoroketene (FHCCO) was generated by laser pyrolysis of fluoroacetyl chloride in a static multipass cell to record the first high-resolution infrared spectrum of its ν2 fundamental band. More than 400 transitions between 2143 and 2160 cm−1 were assigned and analyzed to yield very accurate rotational and centrifugal distortion constants for the upper vibrational state. The ν2 band origin
短寿命分子氟乙烯酮 (FHCCO) 是通过在静态多通道池中激光热解氟乙酰氯生成的,以记录其 ν2 基带的第一个高分辨率红外光谱。分配和分析了 2143 和 2160 cm-1 之间的 400 多个跃迁,以产生非常准确的上振动状态的旋转和离心畸变常数。氟乙烯酮的 ν2 谱带起点位于 2147.826 93 cm-1,与其他乙烯酮的谱带起点相比,这出奇的低。该结果通过所有四种单卤代烯烃的基质分离傅里叶变换红外光谱得到证实。