Comparative study of molecular interactions in aromatic, cyclic and aliphatic ketones with 1-octanol at 308.15K: An insight from ultrasonic velocity and density

Nayeem, Sk. Md; Kondaiah, M.; Sreekanth, K.; Rao, D. Krishna

doi:10.1016/j.molliq.2015.03.041

Cited by 27 publications

(9 citation statements)

References 19 publications

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“…Various factors such as molecular size, molecular shape, solution composition, and temperature influence the established molecular interactions. Therefore, the ultimate variations in the magnitudes of these properties arise due to physical, chemical, and geometrical effects …”

Section: Results and Discussionsupporting

confidence: 78%

“…Therefore, the ultimate variations in the magnitudes of these properties arise due to physical, chemical, and geometrical effects. 60 The chemical effects that originated due to specific molecular interactions have an impact over the volume of a binary mixture. The developed interactions may comprise H-bonding, dipole−dipole, dipole−induced dipole, and complex transferred charges.…”

Section: Resultsmentioning

confidence: 99%

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Thermophysical Study of Binary Systems of tert-Amyl Methyl Ether with n-Hexane and m-Xylene

et al. 2019

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This work presents the experimentally determined density (ρ), viscosity (η), speed of sound (u), and surface tension (σ) data for tert-amyl methyl ether (TAME) + n-hexane and TAME + m-xylene systems at several temperatures (298.15, 308.15, 318.15, 323.15, and 328.15 K). These experimentally determined thermophysical data are utilized to compute various excess/deviation parameters such as molar volume (V E ), isentropic compressibility (κ s E ), speed of sound (u E ), deviation in viscosity (Δ ln η), isobaric thermal expansion coefficient (α P E ), and surface tension (σ E ). The inspection of parameters response may interpret the existing specific molecular interactions as well as the mixing behavior of solutions. The critical analysis of observed parametric behavior have unveiled the strong and weak molecular interactions in TAME with m-xylene and TAME with n-hexane systems, respectively.

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Section: Results and Discussionsupporting

confidence: 78%

Section: Resultsmentioning

confidence: 99%

Thermophysical Study of Binary Systems of tert-Amyl Methyl Ether with n-Hexane and m-Xylene

et al. 2019

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“…The last effect can change the water from lower density ice-like structure consisting of fully or nearly fully hydrogen bonded molecules to higher density dense structure consisting of monomeric or oligomeric water molecules with fewer hydrogen bonds, resulting in a decrease in effective volume of water molecules. 55 The ρ values of microemulsions at f D = 0.65 and 0.70 with varying f w were measured (Tables S3 and S4), and the calculated V m E results are shown in Figure 5. The V m E values are all negative for the two systems over the whole f w changing ranges (nearly from bmimPF 6 /DEAF to water/DEAF binary systems).…”

Section: Resultsmentioning

confidence: 99%

“…There are many factors influencing the volumetric properties of a liquid mixture, including chemical, structural, and physical effects. , The chemical or specific interactions may arise from the formation of hydrogen-bonding and charge-transfer clusters or complexes. The structural contributions include several effects such as interstitial accommodation and geometrical fitting of one component into another due to considerable difference in the molar volume between component molecules.…”

Section: Results and Discussionmentioning

confidence: 99%

Surfactant-Free Microemulsions of 1-Butyl-3-methylimidazolium Hexafluorophosphate, Diethylammonium Formate, and Water

Song

Deng

et al. 2018

Langmuir

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Surfactant-free microemulsions (SFMEs) are a unique kind of microemulsion, which form from immiscible fluids (i.e., oil and water phases) in the presence of amphi-solvents rather than traditional surfactants. In comparison with traditional surfactant-based microemulsions (SBMEs), SFMEs have received much less attention, and the current understanding of the unique system is very limited. Herein, we report a SFME consisting of the hydrophobic ionic liquid (IL) 1-butyl-3-methylimidazolium hexafluorophosphate (bmimPF), the protic IL diethylammonium formate (DEAF), and water, in which the bmimPF and DEAF are used as the oil phase and amphi-solvent, respectively. Three kinds of microstructures, namely, water-in-bmimPF (W/IL), bicontinuous (BC), and bmimPF-in-water (IL/W), are identified for the SFME, using cyclic voltammetry, cryo-TEM, and DLS techniques. Especially, the volumetric and surface free energy properties of the SFME are investigated by excess molar volume ( V) and surface tension (γ) measurements, and they are found to be similar to those of SBMEs. Discontinuous changes in V and γ with the system compositions are observed as the system microstructures change, which can be used to identify the structural transition of SFMEs. We think this study provides a better understanding of SFME features.

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“…In recent years, various theories [5,6] have been in use for computing ultrasonic velocity in liquid mixtures and the deviation in theoretical sound velocity has been attributed mainly to the molecular interactions in the mixtures. In this chapter, the theoretical evaluation of ultrasonic velocity in the binary liquid mixtures have been done using Nomoto's relation [7], Van Deal Vangeal's ideal mixture relation [8] and Free length theory [9].…”

Section: Introductionmentioning

confidence: 99%

Molecular Interactions from the Experimental and Validation with Estimated Theoretical Sound Velocity

Palaniappan

Nithiyanantham²

2019

Chemistry Africa

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The ultrasonic velocity, density and viscosity measurements carried out for the binary mixtures of toluene, m-xylene with some butanols at 303 K. Various theoretical models have been applied to these binary systems; evaluate the sound velocity values and compared with the experimental values. The validity of Nomoto theory (NT), Van Deal-Vangeal (IMR) and Free length theory (FLT) is checked and a comparative study of the above models is made. The non-ideal behavior of the system is explained in terms of molecular interactions of the constituents of the mixture. The interactions further, evident with percentage deviation, molecular interaction parameter and goodness fit test.

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Comparative study of molecular interactions in aromatic, cyclic and aliphatic ketones with 1-octanol at 308.15K: An insight from ultrasonic velocity and density

Cited by 27 publications

References 19 publications

Thermophysical Study of Binary Systems of tert-Amyl Methyl Ether with n-Hexane and m-Xylene

Thermophysical Study of Binary Systems of tert-Amyl Methyl Ether with n-Hexane and m-Xylene

Surfactant-Free Microemulsions of 1-Butyl-3-methylimidazolium Hexafluorophosphate, Diethylammonium Formate, and Water

Molecular Interactions from the Experimental and Validation with Estimated Theoretical Sound Velocity

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