“…Similar changes in the Arrhenius plot of another spectraldynamic quantity, namely, correlation time in the respective motion regimes, s slow c , s fast c at the corresponding characteristic ESR temperatures, T slow,s Xi and T fast,s Xi were found. 24 Recently, a synergic approach consisting in a combination of ESR and PALS techniques was used on a series of representatives of organic compounds of various structural types in the ordinary bulk state. [24][25][26][27] They included apolar or slightly polar compounds, i.e., crystaline n-alkanes or amorphous polymers, 25 polar protic ones, i.e., mono-and polyalcohols 24,26 and polar aprotic substances 27 of small molecular, oligomeric and polymer kinds.…”