The Experts below are selected from a list of 4914 Experts worldwide ranked by ideXlab platform
Xia Yin - One of the best experts on this subject based on the ideXlab platform.
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Organic Salt effect of tetramethylammonium bicarbonate on the vapor liquid equilibrium of the dimethyl carbonate methanol system
Journal of Chemical & Engineering Data, 2012Co-Authors: Changsheng Yang, Xia YinAbstract:Isobaric vapor–liquid equilibrium (VLE) data for the systems dimethyl carbonate (DMC) + methanol and DMC + methanol + tetramethylammonium bicarbonate (TMAB) at different Salt mole fractions (0.04, 0.07, and 0.10) have been measured at 101.32 kPa. The bubble-point data of the system methanol + TMAB have also been measured at different Salt mole fractions. The addition of the Organic Salt TMAB has a Salting-out effect on DMC, and the effect would be enhanced with the increasing Salt concentration. The VLE data of the Salt-containing system were predicted by the modified Wilson and nonrandom two-liquid (NRTL) models proposed by Tan. The average deviations for the mole fraction of the vapor phase and the bubble point by the modified predictive model were: Δy = 0.011, ΔT = 0.6 K.
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Organic Salt Effect of Tetramethylammonium Bicarbonate on the Vapor–Liquid Equilibrium of the Dimethyl Carbonate + Methanol System
Journal of Chemical & Engineering Data, 2011Co-Authors: Changsheng Yang, Xia YinAbstract:Isobaric vapor–liquid equilibrium (VLE) data for the systems dimethyl carbonate (DMC) + methanol and DMC + methanol + tetramethylammonium bicarbonate (TMAB) at different Salt mole fractions (0.04, 0.07, and 0.10) have been measured at 101.32 kPa. The bubble-point data of the system methanol + TMAB have also been measured at different Salt mole fractions. The addition of the Organic Salt TMAB has a Salting-out effect on DMC, and the effect would be enhanced with the increasing Salt concentration. The VLE data of the Salt-containing system were predicted by the modified Wilson and nonrandom two-liquid (NRTL) models proposed by Tan. The average deviations for the mole fraction of the vapor phase and the bubble point by the modified predictive model were: Δy = 0.011, ΔT = 0.6 K.
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Organic Salt Effect of Tetramethylammonium Bicarbonate on the Vapor–Liquid Equilibrium of the Methanol–Water System
Journal of Chemical & Engineering Data, 2011Co-Authors: Changsheng Yang, Xia YinAbstract:The effect of Organic Salt tetramethylammonium bicarbonate (TMAC) at Salt mole fractions from 0 to 0.159 on the vapor–liquid equilibrium (VLE) of the binary methanol–water system has been experimentally investigated at 101.32 kPa using a modified Rose equilibrium still. The experimental data were correlated by Ohe's preferential solvation model and the Tan–Wilson model, and the average deviations of the vapor-phase mole fraction of this Salt-containing methanol–water system are 0.011 and 0.017, respectively. The average deviations of temperature are 1.24 K for Tan's model.
Changsheng Yang - One of the best experts on this subject based on the ideXlab platform.
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Organic Salt effect of tetramethylammonium bicarbonate on the vapor liquid equilibrium of the dimethyl carbonate methanol system
Journal of Chemical & Engineering Data, 2012Co-Authors: Changsheng Yang, Xia YinAbstract:Isobaric vapor–liquid equilibrium (VLE) data for the systems dimethyl carbonate (DMC) + methanol and DMC + methanol + tetramethylammonium bicarbonate (TMAB) at different Salt mole fractions (0.04, 0.07, and 0.10) have been measured at 101.32 kPa. The bubble-point data of the system methanol + TMAB have also been measured at different Salt mole fractions. The addition of the Organic Salt TMAB has a Salting-out effect on DMC, and the effect would be enhanced with the increasing Salt concentration. The VLE data of the Salt-containing system were predicted by the modified Wilson and nonrandom two-liquid (NRTL) models proposed by Tan. The average deviations for the mole fraction of the vapor phase and the bubble point by the modified predictive model were: Δy = 0.011, ΔT = 0.6 K.
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Organic Salt Effect of Tetramethylammonium Bicarbonate on the Vapor–Liquid Equilibrium of the Dimethyl Carbonate + Methanol System
Journal of Chemical & Engineering Data, 2011Co-Authors: Changsheng Yang, Xia YinAbstract:Isobaric vapor–liquid equilibrium (VLE) data for the systems dimethyl carbonate (DMC) + methanol and DMC + methanol + tetramethylammonium bicarbonate (TMAB) at different Salt mole fractions (0.04, 0.07, and 0.10) have been measured at 101.32 kPa. The bubble-point data of the system methanol + TMAB have also been measured at different Salt mole fractions. The addition of the Organic Salt TMAB has a Salting-out effect on DMC, and the effect would be enhanced with the increasing Salt concentration. The VLE data of the Salt-containing system were predicted by the modified Wilson and nonrandom two-liquid (NRTL) models proposed by Tan. The average deviations for the mole fraction of the vapor phase and the bubble point by the modified predictive model were: Δy = 0.011, ΔT = 0.6 K.
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Organic Salt Effect of Tetramethylammonium Bicarbonate on the Vapor–Liquid Equilibrium of the Methanol–Water System
Journal of Chemical & Engineering Data, 2011Co-Authors: Changsheng Yang, Xia YinAbstract:The effect of Organic Salt tetramethylammonium bicarbonate (TMAC) at Salt mole fractions from 0 to 0.159 on the vapor–liquid equilibrium (VLE) of the binary methanol–water system has been experimentally investigated at 101.32 kPa using a modified Rose equilibrium still. The experimental data were correlated by Ohe's preferential solvation model and the Tan–Wilson model, and the average deviations of the vapor-phase mole fraction of this Salt-containing methanol–water system are 0.011 and 0.017, respectively. The average deviations of temperature are 1.24 K for Tan's model.
Vladimir S. Ban - One of the best experts on this subject based on the ideXlab platform.
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intense second harmonic generation and long range structural ordering in thin films of an Organic Salt grown by Organic vapor phase deposition
Applied Physics Letters, 1996Co-Authors: S R Forrest, P E Burrows, A Stroustrup, D Strickland, Vladimir S. BanAbstract:We discuss the growth of thin films of the Organic Salt, 4′‐dimethylamino‐N‐methyl‐4‐stilbazolium tosylate (DAST) by the novel process of Organic vapor phase deposition (OVPD). These films show long‐range structural ordering and very intense second harmonic generation efficiencies (SHG) significantly greater (when normalized for thickness) than that of randomly oriented pure DAST powders. This is the first demonstration of such intense SHG radiation and long‐range ordering for a thin film sample of a nonlinear Organic Salt. Furthermore, this work suggests that OVPD represents a general technique for growing thin films of highly polar, nonlinear optical materials such as DAST.
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Intense second harmonic generation and long‐range structural ordering in thin films of an Organic Salt grown by Organic vapor phase deposition
Applied Physics Letters, 1996Co-Authors: S R Forrest, P E Burrows, A Stroustrup, D Strickland, Vladimir S. BanAbstract:We discuss the growth of thin films of the Organic Salt, 4′‐dimethylamino‐N‐methyl‐4‐stilbazolium tosylate (DAST) by the novel process of Organic vapor phase deposition (OVPD). These films show long‐range structural ordering and very intense second harmonic generation efficiencies (SHG) significantly greater (when normalized for thickness) than that of randomly oriented pure DAST powders. This is the first demonstration of such intense SHG radiation and long‐range ordering for a thin film sample of a nonlinear Organic Salt. Furthermore, this work suggests that OVPD represents a general technique for growing thin films of highly polar, nonlinear optical materials such as DAST.
Dinabandhu Das - One of the best experts on this subject based on the ideXlab platform.
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Unusual Thermal Expansion in Hydrogen Bonded Network of an Organic Salt Induced by Large Transverse Vibration of Atoms
Crystal Growth & Design, 2021Co-Authors: Lalita Negi, Sunil Kumar, Bhavna Dwivedi, Dinabandhu DasAbstract:Thermal expansion of an Organic Salt, prepared by solvent-drop grinding of terephthalic acid and imidazole in a 1:2 ratio, has been studied over a wide range of temperature 100–430 K. Restricted mo...
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Colossal Positive and Negative Axial Thermal Expansion Induced by Scissor-like Motion of a Two-Dimensional Hydrogen Bonded Network in an Organic Salt
Crystal Growth & Design, 2019Co-Authors: Bhavna Dwivedi, Lalita Negi, Ashutosh Shrivastava, Dinabandhu DasAbstract:A variable temperature single crystal X-ray diffraction study revealed an unusual thermal expansion property of an Organic Salt, imidazolium 4-hydroxybenzene carboxylate, which exhibits colossal ne...
Azim Ziyaei Halimehjani - One of the best experts on this subject based on the ideXlab platform.
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Synthesis of a novel tetracationic acidic Organic Salt based on DABCO and its applications as catalyst in the Knoevenagel condensation reactions in water
Synthetic Communications, 2019Co-Authors: Azim Ziyaei Halimehjani, Vahid Barati, Mahshad KarimiAbstract:Synthesis of a novel tetracationic acidic Organic Salt based on DABCO containing two sulfonic acid groups in the skeleton and four hydrogensulfate groups as counterion is described. Its catalytic e...
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synthesis of a novel tetracationic acidic Organic Salt based on dabco and its applications as catalyst in the knoevenagel condensation reactions in water
Synthetic Communications, 2019Co-Authors: Azim Ziyaei Halimehjani, Vahid Barati, Mahshad KarimiAbstract:AbstractSynthesis of a novel tetracationic acidic Organic Salt based on DABCO containing two sulfonic acid groups in the skeleton and four hydrogensulfate groups as counterion is described. Its cat...
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Synthesis of a novel tetracationic acidic Organic Salt based on DABCO and its applications as catalyst in the Knoevenagel condensation reactions in water
2019Co-Authors: Azim Ziyaei Halimehjani, Vahid Barati, Mahshad KarimiAbstract:Synthesis of a novel tetracationic acidic Organic Salt based on DABCO containing two sulfonic acid groups in the skeleton and four hydrogensulfate groups as counterion is described. Its catalytic efficiency in the Knoevenagel condensation of aldehydes with active cyclic methylene compounds in water is investigated. While 2,2'-(phenylmethylene)bis(3-hydroxy-5,5-dimethylcyclohex-2-enone) derivatives were obtained in 40–98% isolated yields in the reaction of aldehydes with dimedone, the corresponding Knoevenagel adducts were provided in 85–95% yields using 1,3-dimethylbarbituric acid. In addition, a DABCO-based polycationic Organic Salt polymer was prepared and characterized for the first time.
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Synthesis and Characterization of a Tetracationic Acidic Organic Salt and Its Application in the Synthesis of Bis(indolyl)methanes and Protection of Carbonyl Compounds.
ChemInform, 2015Co-Authors: Azim Ziyaei Halimehjani, Seyyed Emad Hooshmand, Elham Vali ShamiriAbstract:The new tetracationic Organic Salt TCAOS is successfully applied as ecofriendly and reusable catalyst for the synthesis of bis(indolyl)methanes from indoles and carbonyl compounds and the acetalization of carbonyl compounds under solvent-free conditions.
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Synthesis and characterization of a tetracationic acidic Organic Salt and its application in the synthesis of bis(indolyl)methanes and protection of carbonyl compounds
RSC Advances, 2015Co-Authors: Azim Ziyaei Halimehjani, Seyyed Emad Hooshmand, Elham Vali ShamiriAbstract:A new tetracationic acidic Organic Salt (TCAOS) based on DABCO was prepared, characterized and applied as an eco-friendly, powerful and reusable catalyst for the synthesis of bis(indolyl)methanes from indoles and carbonyl compounds in water with high turnover frequency (TOF). Also, this catalyst was successfully applied for acetalization of carbonyl compounds with diols under solvent-free conditions.