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以核磁共振谱的质子化学位移为依据，提出了一个计算基团Ｐａｕｌｉｎｇ 电负性的方法。给出了基团Ｒ 的电负性值与ＣＨ３ —Ｒ 中质子化学位移δ的关系式：ｘ ＝ １０ ．６５ － ８ ．５５５２ － （１．２５δ）２
Based on the proton chemical shifts of NMR spectra, a method for calculating the Pauling electronegativity of a group was proposed. The relationship between the electronegativity of a group R and the proton chemical shift δ in CH3 -R is given: x = 10. 65 - 8. 5552 - (1.25δ) 2