Study on thermo physical properties of binary mixture containing aromatic alcohol with aromatic, substituted aromatic amines at different temperatures interms of FT-IR, 1 H NMR spectroscopic and DFT method

Raveendra, M.; Chandrasekhar, Masta; Reddy, K. Krishna; Venkatesulu, A.; Sivakumar, K.; Reddy, K. Dayananda

doi:10.1016/j.fluid.2018.01.025

Cited by 19 publications

(8 citation statements)

References 56 publications

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“…With the increase of temperature, the absolute values of for the mixture show a slight upward trend. In the cyclopentanol-containing binary systems, the values of excess molar volumes are primarily influenced by the hydrogen bonds among cyclopentanol molecules. − When decalin is added into cyclopentanol, the breaking of hydrogen bonds gives rise to the positive excess molar volumes. In the system of methylcyclohexane and cyclopentanol, the molecules are tightly associated together because of the hydrogen bonds when the concentration of cyclopentanol in the mixture is high, which causes the values to be negative.…”

Section: Resultsmentioning

confidence: 99%

Densities and Viscosities for the Ternary System of Decalin + Methylcyclohexane + Cyclopentanol and Corresponding Binaries at T = 293.15 to 343.15 K

et al. 2019

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Densities (ρ) and viscosities (η) for the ternary system of decalin (1) + methylcyclohexane (2) + cyclopentanol (3) and three corresponding binary systems have been measured over the whole composition range at 11 temperature points from 293.15 K to 343.15 K under atmospheric pressure (0.1 MPa). The excess molar volumes (V m E ) and viscosity deviations (Δη) of binary systems have been calculated and further fitted with the Redlich−Kister equation, while corresponding physical data of the ternary system have been correlated via the Clibuka, Singh, Nagata-Tamura, and Redlich−Kister equations. The V m E values are negative for the binary system of decalin (1) + methylcyclohexane (2) with a minimum when the moles of the two components are similar. For the system of decalin (1) + cyclopentanol (2), the V m E values are always positive with a maximun at about x 1 = 0.6. At the same time, a sigmoid curve can be observed for the system of methylcyclohexane (1) + cyclopentanol (2). The minimum and maximum appear around x 1 = 0.2 and x 1 = 0.9, respectively. The Δη values of the three binary systems are all negative and the absolute values decrease with increase in temperature. For the ternary system, the V m E values are partially negative and the Δη values are negative over the entire concentration range. The nonideal behaviors of the mixtures are discussed in the perspective of intermolecular interaction and structural effect.

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Section: Resultsmentioning

confidence: 99%

Densities and Viscosities for the Ternary System of Decalin + Methylcyclohexane + Cyclopentanol and Corresponding Binaries at T = 293.15 to 343.15 K

et al. 2019

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“…Indeed, the –NH 2 group can act simultaneously as proton acceptor (N···HB) and donor (N–H···B, B stands for an acceptor) in H‐bonded complexes. [ 26 ] As a matter of fact, NH···O bonds are known to be stronger than OH···O hydrogen bonds, which can explain the better foaming properties of aniline compared to benzyl alcohol. [ 27 ]…”

Section: Resultsmentioning

confidence: 99%

Foams Stabilized by Aquivion^TM PFSA: Application to Interfacial Catalysis for Cascade Reactions

Feng

Dedovets

Shi

et al. 2022

Adv Materials Inter

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Foams are attractive platforms for engineering gas–liquid–solid catalytic microreactors with enhanced triphasic contact. In this study, the foaming properties of surface‐active AquivionTM perfluorosulfonic acid resin (AquivionTM PFSA) are unraveled. Stable aqueous and non‐aqueous foams are prepared driven by hydrogen bond interactions between AquivionTM PFSA and protic solvents (e.g., benzyl alcohol, aniline, water). In light of these unique properties, a catalytic foam system for one‐pot cascade deacetalization–hydrogenation reactions is designed. As proof of concept, benzaldehyde dimethyl acetal is converted into benzyl alcohol with 84% overall yield at room temperature in a foam system in the presence of AquivionTM PFSA and Pd/SiO2 catalysts, whereas the yield is halved in a non‐foam system. The enhanced reaction efficiency is attributed to a marked increase in interfacial area of the foam system and preferential location of catalytic acid centers at the gas–liquid interface.

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“…In general, the dielectric relaxation time is influenced by the shape and size of the rotational and vibrational characteristics of the dipoles present in the liquid mixtures [16][17][18] . The dielectric relaxation time (τ) decreases with increasing the concentrations of brompheniramine, as shown in Figure 2.…”

Section: Resultsmentioning

confidence: 99%

Dielectric Relaxation Studies Between Brompheniramine with 1-Butanol, 1-Pentanol and 1-Hexanol at 303K

Elangovan

Garbi

Senbeto

2020

Mat. Sci. Res. India

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The dielectric relaxation studies are vital in analyzing the strength of the inter molecular interaction between the binary liquid systems [1-4]. Jyostna et al. [5] reported thermodynamic parameters of isoamyl alcohols and mono clinic aromatic liquid mixtures. Shakila et al. [6] studied the dielectric properties of aromatic alcohols and aliphatic amines at different temperatures. In general, dielectric relaxation time varies with the inter molecular forces acting between the molecules in the selected liquid mixtures. Brompheniramine is one of the critical compounds of an amine group with spectacular applications, including pharmaceutical industries [7]. Higher carbon chain length alcohols are having self associated and proton donating ability in the liquid mixtures. The variations in the dielectric constant (є’), dielectric loss (є’’), static dielectric constant (є0) and the dielectric constant at an optical frequency (є∞) with a range of brompheniramine concentrations with 1-butanol,1-pentanol and 1-hexanol systems are useful in the applied research and chemical industries. Moreover, the variations in the dielectric constant and dielectric relaxation time should be useful in the analysis of intermolecular interaction between the functional group of the selected liquid mixtures. This research work attempts to analyse the intermolecular interaction between the brompheniramine and 1-butanol,1-pentanol and 1-hexanol at 303K using time domain reflectometry techniques.

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Study on thermo physical properties of binary mixture containing aromatic alcohol with aromatic, substituted aromatic amines at different temperatures interms of FT-IR, 1 H NMR spectroscopic and DFT method

Cited by 19 publications

References 56 publications

Densities and Viscosities for the Ternary System of Decalin + Methylcyclohexane + Cyclopentanol and Corresponding Binaries at T = 293.15 to 343.15 K

Densities and Viscosities for the Ternary System of Decalin + Methylcyclohexane + Cyclopentanol and Corresponding Binaries at T = 293.15 to 343.15 K

Foams Stabilized by Aquivion^TM PFSA: Application to Interfacial Catalysis for Cascade Reactions

Dielectric Relaxation Studies Between Brompheniramine with 1-Butanol, 1-Pentanol and 1-Hexanol at 303K

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Study on thermo physical properties of binary mixture containing aromatic alcohol with aromatic, substituted aromatic amines at different temperatures interms of FT-IR, 1 H NMR spectroscopic and DFT method

Cited by 19 publications

References 56 publications

Densities and Viscosities for the Ternary System of Decalin + Methylcyclohexane + Cyclopentanol and Corresponding Binaries at T = 293.15 to 343.15 K

Densities and Viscosities for the Ternary System of Decalin + Methylcyclohexane + Cyclopentanol and Corresponding Binaries at T = 293.15 to 343.15 K

Foams Stabilized by AquivionTM PFSA: Application to Interfacial Catalysis for Cascade Reactions

Dielectric Relaxation Studies Between Brompheniramine with 1-Butanol, 1-Pentanol and 1-Hexanol at 303K

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Product

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Foams Stabilized by Aquivion^TM PFSA: Application to Interfacial Catalysis for Cascade Reactions