2D phase transition of organic molecules adsorbed at the Hg electrode aqueous solution interface - Part 2 comparison of experimental data with model predictions

The 2D phase transition of thymine, uracil, guanine and coumarin, adsorbed at the Hg electrode/aqueous solution interface, is rationalised on the basis of the model proposed in Part 1, J. Chem. Sec., Faraday Trans., 1994, 90, 2925. The results together with that obtained for adenine, are compared with the relevant quantities calculated by using molecular descriptors (dipole moments and polarizabilities). Finally, a value of the standard eathalpy phase-transition variation, averaged over the results collected for the five compounds is estimated and discussed.