Studies on thermodynamic properties of binary mixtures of hexan-1-ol with halogenated compounds at T=(308.15 and 313.15)K

Thermophysical and sonochemical behaviour of binary mixtures of decan-1-ol with halohydrocarbons at (T=293.15 and 313.15)K

“…The V E values are positive at all temperatures for these systems over the whole composition range. Exactly similar type of behaviour has been observed for the variation of V E with mole fraction for the binary mixtures of (1,2-dichloroethane + heptanol) and (1,1,2,2-tetrachloroethane + heptanol) [13], (1,2-DCE + hexan-1-ol), (1,2-DBE + hexan-1-ol), and (1,1,2,2-TCE + hexan-1-ol) [3], (1,2-dichloroethane + octan-1ol), and (1,1,2,2-tetrachloroethane + octan-1-ol) [4]. For the systems under consideration, the differences between the corresponding isotherms are greater in the middle mole fraction range and the excess molar volume, V E decreases in the sequence: (1,1,2,2-tetrachloroethane + octan-1-ol) system [4].…”

“…These dipoles interact with each other forming a large number of weak halohydrocarbon bonds of the type OÁ Á ÁCl, OÁ Á ÁBr, OÁ Á ÁH, and pÁ Á ÁH. This trend can be correlated with the decrease in the population of decan-1-ol oligomers with increasing temperature meaning that the rupture of the solvate structures occurs due to increased Brownian motion [3][4][5][6]47] and the space-filling ability therefore decreases at higher temperatures. The interaction strength of decan-1-ol and the halohydrocarbons may be related to the number of halogen atoms present in the halohydrocarbons [3][4][5][6].…”

“…This trend can be correlated with the decrease in the population of decan-1-ol oligomers with increasing temperature meaning that the rupture of the solvate structures occurs due to increased Brownian motion [3][4][5][6]47] and the space-filling ability therefore decreases at higher temperatures. The interaction strength of decan-1-ol and the halohydrocarbons may be related to the number of halogen atoms present in the halohydrocarbons [3][4][5][6]. Due to the presence of four chlorine atoms in 1,1,2,2-TCE as compared to two in 1,2-DCE and two bromine atoms in 1,2-DBE, four H-bonds of the type ClÁ Á ÁH-O will be formed between the OH group of decan-1-ol polymeric entities and 1,1,2,2-TCE molecule as compared to two ClÁ Á ÁH-O bonds in the 1,2-DCE and two BrÁ Á ÁH-O bonds in 1,2-DBE decan-1-ol system, respectively [3][4][5][6].…”

“…The variations in the volumetric and acoustic properties of binary mixtures of alkanols containing haloalkanes, acetonitrile, ethylacetate, and ethenyl ethanoate, with the molecular size, shape, chain-length, and degree of molecular association of normal alkanols and branched alkanols have been reported earlier [1][2][3][4][5][6][7][8][9][10]. Alkanols are polar and self-associated liquids, and the dipolar association of alkanols decreases when they are mixed with polar compounds containing halogen atoms, due to some sort of specific intermolecular interactions between the hydroxyl oxygen of alkanols and the haloalkanes [11][12][13][14][15][16][17][18][19][20][21][22][23].…”

“…The interaction strength of decan-1-ol and the halohydrocarbons may be related to the number of halogen atoms present in the halohydrocarbons [3][4][5][6]. Due to the presence of four chlorine atoms in 1,1,2,2-TCE as compared to two in 1,2-DCE and two bromine atoms in 1,2-DBE, four H-bonds of the type ClÁ Á ÁH-O will be formed between the OH group of decan-1-ol polymeric entities and 1,1,2,2-TCE molecule as compared to two ClÁ Á ÁH-O bonds in the 1,2-DCE and two BrÁ Á ÁH-O bonds in 1,2-DBE decan-1-ol system, respectively [3][4][5][6]. Unsaturation present in the 1,1,2,2-TCE will also contribute towards the interaction strength of 1,1,2,2-TCE + decan-1-ol and may involve in the formation of OHÁ Á Áp electron H-bonded complex which may lead to decrease in molar excess volume, V E [3].…”