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Sažetak The question of the stability of the bicyclic form of AA is addressed by several theoretical methods varying in the level of sophistication. Both semi- empirical and ab initio approaches indicate that the bicyclic form is somewhat more stable than the 2,3-enediol tautomer (7). However, the tautomer I has a significantly higher dipole moment indicating that it gains additionally in stability if dissolved in polar solvents due to strong electrostatic solvent-solute interactions.

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Hodošček, M.., Fodor, G.., & Eckert-Maksić, M.. (1991). Theoretical Study Of (3, 6) Cyclohemiketal Form Of L-Ascorbic Acid. Croatica Chemica Acta. Arhiv za Kemiju, 64(3), 529-537.