Fig. 5. CEL maps of selected glycosyl cations in which the local minima identified are shown with their respective energy⁴².

Two acetyl ester rotamers (R1 and R2) were considered for all computed glycosyl cations generating two sperate CEL maps. All energies are as computed at PCM(CH₂Cl₂)-B3LYP/6-311G(d,p) at 213.15 K and expressed as solution-phase Gibbs free energy. CEL maps for C3-acetyl pyranosyl ions (a–c), C4-acetyl pyranosyl ions (d–f), C6-acetyl pyranosyl ions (g–i). j Table summarizing the relative energy of the dioxolenium and oxocarbenium ion conformers in the gas- and solution-phase.