【摘要】 <正> 含氟膦叶立德及有关化合物的结构,曾用红外光谱、核磁共振和质谱法进行过研究。到目前为止,尚未见到有关含氟膦叶立德的拉曼光谱的报道。我们做了14种含氟膦叶立德及有关化合物的激光拉曼光谱,并对其主要基团的拉曼谱带进行了讨论。更多还原

【Abstract】 The laser Raman spectra of fourteen fluorinated phosphonium Ylides and its related compounds have been analyzed. The Raman bands of main groups have been discussed. The frequency of C=O in ester occurs appro- ximately 30 cm^-1 lower than that in the corresponding O-alkyl esters （acetate and propionate）; the frequency of C=O in ketone occurs approximately 30—100 cm^-1 lower than that in the corresponding aliphatic ketones. The stretching vibrational band of P—C bond occurs near 680 cm^-1. The characteristic band of P—C=C—O group occurs near 1570 cm^-1. There are many medium—very strong Raman bands below 300 cm^-1.更多还原