近三十年来,人们积累了大量磷酰基化合物如POX_3、PO(OR)_3等的红外光谱数据。这些数据表明:不同类型分子的P=O频率可在1160—1400cm~(-1)的范围内变动,Daasch等并指出P=O频率的移位与取代基的电负性有关。其后,Bell等、陈文驹和Goubeau等又分别得到了P=O的红外吸收频率与三个取代基的电负性和∑X的线性关系。 在前人工作的基础上,我们重新分析了已发表的有关P=O频率的数据(包括我们所测 Nearly thirty years, people accumulated a large number of phosphoryl compounds such as POX_3, PO (OR) _3 and other infrared spectroscopy data. These data show that the P = O frequencies of different types of molecules can vary from 1160 to 1400 cm -1, and Daasch et al. Show that the shift of the P = O frequency is related to the electronegativity of the substituent. Later, Bell et al., Chen Wenju and Goubeau et al. Obtained the linear relationship between the infrared absorption frequency of P = O and the electronegativity of the three substituents and ΣX respectively. Based on our previous work, we reanalyzed the published data on the frequency of P = O (including what we have measured