Figure 15. Plot of ΔGsolv versus Hammett σ of protonated phosphorines

From

Comparison of Substituent Effects in Benzenes (XC5H5C), Pyridines (XC5H4N) and Phosphorines (XC5H4P) and their Protonated Species

R. Sanjeev, V. Jagannadham

World Journal of Chemical Education. 2020, 8(4), 155-162 doi:10.12691/wjce-8-4-3