Abstract
Ab initio calculations on the different associated structures of 2-pyrrolidinone with water and with itself were carried out using 3-21G and 6-31G* basis sets at the Hartree–Fock level, including electron correlation using second-order Møller–Plesset perturbation theory. The calculated free energy changes for the intermolecular hydrogen bonded dimer and hydrated species indicated that the molecular systems with cyclic dimerization and association with two water molecules are dominant. The results are compared to the available experimental data in the literature.
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Yekeler, H., Guven, A. & Ozkan, R. Hydrogen bonding and dimeric self-association of 2-pyrrolidinone: An ab initio study. J Comput Aided Mol Des 13, 589–596 (1999). https://doi.org/10.1023/A:1008037504968
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DOI: https://doi.org/10.1023/A:1008037504968