Phase behavior of imidazolium and phosphonium tetrafluoroborates with dihydroxy alcohols

Makowska, Anna; Papis, Paulina; Szydłowski, Jerzy

doi:10.1016/j.fluid.2014.08.028

Cited by 9 publications

(12 citation statements)

References 28 publications

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“…A study on the miscibility of [C n C 1 IM][BF 4 ]–dihydroxy alcohol systems shows the same behavior with UCST. − The alkyl chain length in alcohol influences the miscibility as well but its impact is much more complex than in the case of monohydroxyalcohols. For example, with increasing chain length in the N–3 position of the [C n C 1 IM] + cation, the UCST shifts toward higher temperatures for the systems with 1,2-ethanediol, while it was the opposite for the systems with monohydroxy alcohols (UCST shifts toward lower temperatures with increasing chain length).…”

Section: Thermomorphic Systems Based On Ionic Liquids (Ils)mentioning

confidence: 78%

Temperature-Responsive Ionic Liquids: Fundamental Behaviors and Catalytic Applications

et al. 2017

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Temperature-responsive ionic liquids (ILs), their fundanmental behaviors, and catalytic applications were introduced, especially the concepts of upper critical solution temperature (UCST) and lower critical solution temperature (LCST). It is described that, during a catalytic reaction, they form a homogeneous mixture with the reactants and products at reaction temperature but separate from them afterward at ambient conditions. It is shown that this behavior offers an effective alternative approach to overcome gas/liquid-solid interface mass transfer limitations in many catalytic transformations. It should be noted that IL-based thermomorphic systems are rarely elaborated until now, especially in the field of catalytic applications. The aim of this article is to provide a comprehensive review about thermomorphic mixtures of an IL with HO and/or organic compounds. Special focus is laid on their temperature dependence concerning UCST and LCST behavior, including systems with conventional ILs, metal-containing ILs, polymerized ILs, as well as the thermomorphic behavior induced via host-guest complexation. A wide range of applications using thermoregulated IL systems in chemical catalytic reactions as well as enzymatic catalysis were also demonstrated in detail. The conclusion is drawn that, due to their highly attractive behavior, thermoregulated ILs have already and will find more applications, not only in catalysis but also in other areas.

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Section: Thermomorphic Systems Based On Ionic Liquids (Ils)mentioning

confidence: 78%

Temperature-Responsive Ionic Liquids: Fundamental Behaviors and Catalytic Applications

et al. 2017

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“…separated liquid‐liquid mixture systems increased with increasing temperature. [ 83‐85 ] In contrast, in the liquid‐liquid two‐phase system with LCST‐type phase separation, the mutual solubility of the two components increases with the decrease of temperature. [ 86‐91 ] The fundamental behaviors and catalytic applications of temperature‐responsive ILs have been summarized in detail in Qiao's review.…”

Section: Temperature‐responsive Ilsmentioning

confidence: 99%

Stimuli‐Responsive Ionic Liquids and the Regulation of Aggregation Structure and Phase Behavior†

Yuan

Zhang

et al. 2021

Chin. J. Chem.

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Ionic liquids with stimuli‐responsive characteristics are an essential branch in the comprehensive ionic liquids' family, which can meet the controllable and reversible needs in practical applications with different stimulation means. In this review, we summarize the recent research progress of these stimuli‐responsive ionic liquids, mainly focusing on their chemical structures, properties, responsive mechanism, aggregation structures, and phase behaviors, which were driven by external stimuli, such as CO2, magnetism, light, temperature, redox, and pH. Then, the particular or potential applications of stimuli‐responsive ionic liquids are expounded in various fields of science, including catalytic reaction, extraction, separation, nanomaterial preparation, and gas absorption. In the end, the challenges and strategies of the subject are briefly presented. It is expected that this review will contribute to the rational design and applications of stimuli‐responsive ionic liquids in the future.

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“…In addition, IL–ML binary solutions may separate into IL-rich and ML-rich phases with variation of the temperature. Thus, cooling can induce the liquid–liquid phase separation of IL–ML solutions with an upper critical solution temperature (UCST), 1–15 whereas heating can lead to lower critical solution temperature (LCST) behavior. 16–26 Of note is that such behavior is also observed in ML–ML binary solutions, e.g.…”

Section: Introductionmentioning

confidence: 99%

Effects of self-hydrogen bonding among formamide molecules on the UCST-type liquid–liquid phase separation of binary solutions with imidazolium-based ionic liquid, [C_nmim][TFSI], studied by NMR, IR, MD simulations, and SANS

Kawano

Tashiro

Imamura

et al. 2022

Phys. Chem. Chem. Phys.

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Phase behavior of imidazolium and phosphonium tetrafluoroborates with dihydroxy alcohols

Cited by 9 publications

References 28 publications

Temperature-Responsive Ionic Liquids: Fundamental Behaviors and Catalytic Applications

Temperature-Responsive Ionic Liquids: Fundamental Behaviors and Catalytic Applications

Stimuli‐Responsive Ionic Liquids and the Regulation of Aggregation Structure and Phase Behavior†

Effects of self-hydrogen bonding among formamide molecules on the UCST-type liquid–liquid phase separation of binary solutions with imidazolium-based ionic liquid, [C_nmim][TFSI], studied by NMR, IR, MD simulations, and SANS

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Phase behavior of imidazolium and phosphonium tetrafluoroborates with dihydroxy alcohols

Cited by 9 publications

References 28 publications

Temperature-Responsive Ionic Liquids: Fundamental Behaviors and Catalytic Applications

Temperature-Responsive Ionic Liquids: Fundamental Behaviors and Catalytic Applications

Stimuli‐Responsive Ionic Liquids and the Regulation of Aggregation Structure and Phase Behavior†

Effects of self-hydrogen bonding among formamide molecules on the UCST-type liquid–liquid phase separation of binary solutions with imidazolium-based ionic liquid, [Cnmim][TFSI], studied by NMR, IR, MD simulations, and SANS

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Effects of self-hydrogen bonding among formamide molecules on the UCST-type liquid–liquid phase separation of binary solutions with imidazolium-based ionic liquid, [C_nmim][TFSI], studied by NMR, IR, MD simulations, and SANS