[en] Complete text of publication follows. Solvent radical cations, or holes, are the key intermediates in many radiation chemical processes. Because of their short life span (ns to tens of ns), normal molecular ion mobility and the lack of specific optical spectra the holes of n-alkanes are difficult to study using conventional spectroscopic techniques. A suitable alternative is spin chemistry methods taking advantage of the hole being a partner of a spin--correlated radical ion pair. In this work stationary magnetic field effect including MARY spectroscopy was applied to study proton transfer from holes to alcohols in n-alkanes. Reactions with additives were registered as line broadening in experimental MARY spectra reflecting short time scale evolution of the pair. An extensive scan for n-alkanes from C₆ to C₁₆ and alcohols from MeOH to t-BuOH with careful provisions for solvent purity yielded diffusion-controlled rates of the pair decay for all alkane/alcohol combinations. Surprisingly, no correlation was found between the rate and the AE(PA) of the expected proton transfer reaction, extrapolated from gas phase data. One possible explanation is that the differences in sizes and charge distributions of the two cations can make a substantial (and hardly accountable) solvation contribution to the driving force of the reaction even in these non-polar solvents. Another option is that other reaction channels like interaction with the radical anion partner of the pair are possible. To clarify the matter normal magnetic effect reflecting the effective hyperfine coupling of the radical ions was employed. Providing radical anions with effective couplings significantly lower and higher than those of the solvent hole helped ascribe the observed magnetic field effects and MARY spectra. Substitution of the hole with a stable radical cation not prone to proton loss under these conditions showed that it is solvent hole that is attacked by the alcohol. The counter ion does not appear to be affected by the alcohol, which supports earlier experimental data