The σ* constants of ionic substituents

1.	We determined the chemical shifts in the31P NMR spectra of the compounds (C2 H5 O)2 P(O)SX (X = (CH2 )m \mathop S+ (CH3 )C2 H5 (C_2 H_5 O)_2 P(O)SX (X = (CH_2 )_m \mathop S\limits^ + (CH_3 )C_2 H_5 , (CH2)mSC2H5 (m=2–4 and 6)) and CnH2n+1 (n=6, 8), and obtained a linear correlation between p and the * constants of the X substituents.
2.	The induction constants of the charged substituents, which were obtained from the rate of the inter-ionic reactions at a high ionic strength of the medium, constitute a single scale with the * constants for the uncharged electronegative substituents.