Abstract
The polarizable continuum solvation model (PCM) is extended to the possible tautomer forms of the natural alkyl substituted 2,4-pentanediones. Solvation analysis has been carried out of all of the conformers of 3-methyl and 3-ethyl substituted 2,4-pentanediones in polar and non-polar solvents having a wide range of dielectric constants. The test set consists of water, ethyl alcohol, methyl alcohol, chlorobenzene, chloroform, benzene and carbon tetrachloride. The physical properties of the systems, such as Gibbs energies, electrostatic energies and induced dipole moments are discussed. Quantum mechanical self consistent fields explain the properties of the compounds satisfactorily.
Similar content being viewed by others
References
Elguero, J., Katritzky, A.R., Denisko, O.: Prototropic tautomerism of heterocycles: heteroaromatic tautomerism–general overview and methodology. Adv. Hetercycl. Chem. 76, 1–84 (2000)
Minkin, V.I., Garnovski, A.D., Elguero, J., Katritzky, A.R., Denisko, O.: The tautomerism of heterocycles: five-membered rings with two or more heteroatoms. Adv. Heterocycl. Chem. 76, 157–323 (2000)
Abo-Awwad, Z., Abo-Awwad, F.M.: Tautomerism of 5-methyl imidazolidine thio derivatives in the gas phase: a density functional. E-J. Chem. 5, 884–893 (2008)
Antonov, L., Fabian, W.M.F., Taylor, P.J.: Tautomerism in some aromatic Schiff bases and related azo compounds: an LSER study. J. Phys. Org. Chem. 18, 1169–1175 (2005)
Uk, D.K., Paik, S.-H., Kim, S.-H., Tak, Y.-H., Kim, S.-D., Kim, K.-D., Ju, H.-J., Kim, Y.-J., Beak, J.-J., Jeong, Y.C., Park, L.S., Park, Y.S.: Iridium complexes with 3-methyl-2,4-pentanedione ligand for organic electroluminescent device. J. Nonlinear Opt. Phys. Mater. 14, 529–534 (2005)
Tomasi, J., Persico, M.: Molecular interactions in solution: an overview of methods based on continuous distributions of the solvent. Chem. Rev. 94, 2027–2094 (1994)
Cramer, C.J., Truhlar, D.G.: Implicit solvation models: equilibria, structure, spectra, and dynamics. Chem. Rev. 99, 2161–2260 (1999)
Tomasi, J., Mennucci, B., Cammi, R.: Quantum mechanical continuum solvation models. Chem. Rev. 105, 2999–3094 (2005)
Chamberlin, A.C., Cramer, C.J., Truhlar, D.G.: Predicting aqueous free energies of solvation as functions of temperature. J. Phys. Chem. B 110, 5665–5675 (2006)
Sathyanarayanamoorthi, V., Ponnambalam, U., Gunasekaran, S., Kannappan, V.: Solvation analysis of 1,6-dichloro hexane and 1-chloro-6-iodo hexanes. J. Mol. Liq. 112, 157–160 (2004)
Fuke, K., Yoshiuchi, H., Kaya, K., Becke, A.D.: Electronic spectra and tautomerism of hydrogen-bonded complexes of 7-azaindole in a supersonic jet. J. Phys. Chem. 88, 5840–5844 (1984)
Stephens, P.J., Devlin, F.J., Chabalowski, C.F., Frisch, M.J.: Ab initio calculation of vibrational absorption and circular dichroism spectra using density functional force fields. J. Phys. Chem. 98, 11623–11627 (1994)
Dewar, M.J.S., Zoebisch, E.G., Healy, E.F., Stewart, J.J.P.: Development and use of quantum mechanical molecular models. 76. AM1: a new general purpose quantum mechanical molecular model. J. Am. Chem. Soc. 107, 3902–3909 (1985)
Stewart, J.J.P.: Optimization of parameters for semiempirical methods I. Method. J. Comput. Chem. 10, 209–220 (1989)
Schmidt, M.W., Baldridge, K.K., Boatz, J.A., Elbert, S.T., Gordon, M.S., Jensen, J.H., Koseki, S., Matsunaga, N., Nguyen, K.A., Su, S., Windus, T.L., Dupuis, M., Montgomery, J.A. Jr.: General atomic and molecular electronic structure system GAMESS. J. Comput. Chem. 14, 1347–1363 (1993)
Winget, P., Thompson, J.D., Cramer, C.J., Truhlar, D.G.: Parametrization of a universal solvation model for molecules containing silicon. J. Phys. Chem. 106, 5160–5168 (2002)
Ratera, I., Ruiz-Molina, D., Renz, F., Ensling, J., Wurst, K., Rovira, C., Gütlich, P., Veciana, J.: A new valence tautomerism example in an electroactive ferrocene substituted triphenylmethyl radical. J. Am. Chem. Soc. 107, 1462–1463 (2003)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Sathyanaranyamoorthi, V., Brindha, S. & Kannappan, V. Polarizable Continuum Studies on Methyl and Ethyl Substituted 2,4-Pentanedione. J Solution Chem 39, 559–565 (2010). https://doi.org/10.1007/s10953-010-9524-y
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10953-010-9524-y