Enthalpies of solution, partial molar volumes and isentropic compressibilities of polycyclic aromatic hydrocarbons in 1-methyl-2-pyrrolidone at 298.15K

Thermodynamic and Acoustic Study on Molecular Interactions in Certain Binary Liquid Systems Involving Ethyl Benzoate

“…Similar interactions are reported in the mixtures of DMF and polycyclic aromatic hydrocarbons by Nikam and Kharat [42,43] and by Ramadevi and Prabhakara Rao [44]. Also, formation of induced polar interactions like dipole-induced dipole interactions between polycyclic aromatic hydrocarbons and NMP (acyclic amide) is reported by Sugiura and Ogawa [45]. This further supports that amides react with aromatic compounds more strongly than the corresponding aliphatic counter parts.…”

Thermodynamic properties of solvation of aromatic compounds in cyclohexane, heptane, benzene, 1,4-dioxane, and chloroform at 298.15K

“…This suggests that the polyphenyl compounds cause a stronger solvation in the polar solvents than in the non-polar solvents. This phenomenon is expected due to the induced polar interaction formed between the polyphenyl compound and the polar solvent, which has already been reported [3]. The values of V 1 m;1 in cyclohexane and heptane are plotted against n c in the solute molecules in figure 2.…”

“…The values of K 1 s;m;1 also show a linearity that is similar to that shown by those of V 1 m;1 but decrease as n c increases. This tendency is dissimilar to those of compounds in 1-methyl-2-pyrrolidone which is a strong polar solvent [3]. Linear dependence of V 1 m;1 and K 1 s;m;1 against n c is better for the compounds with the zigzag structure than for those with the linear structure and o-terphenyl.…”

“…As shown in the figure, a positive linear correlation between j 1 s;1 and e 1 is found for the compounds with the cata-condensed ring and those with the zigzag structure of the polyphenyl compounds, except for o-, p-terphenyl. A larger slope is observed for the systems of heptane solvent and cyclohexane solvent than for the 1-methyl-2-pyrrolidone solvent [3]. Solvation of the polycyclic aromatic compound molecule with non-polar solvent is not stronger than that with polar solvent.…”

“…m;1 , and apparent partial molar isentropic compressions at infinite dilution, K 1 s;m;1 , of the polycyclic aromatic compounds dissolved in a strong polar solvent such as 1-methyl-2-pyrrolidone (NMP) were estimated [3]. A larger value of solvation enthalpy was observed in NMP than in benzene.…”