Synthesis, Physical Properties and Application of a Series of New Polyoxometalate-Based Ionic Liquids
Abstract
:1. Introduction
2. Results and Discussion
2.1. Syntheses and Characterizations of POM-Based Ionic Liquids
2.1.1. Syntheses and Routine Characterizations
2.1.2. Determination of Physical Properties
Differential Scanning Calorimetry and Polarized Optical Microscopy
Rheological Investigations
2.2. Application of POM-ILs in Catalysis
3. Materials and Methods
3.1. General Methods
3.2. Syntheses
3.2.1. Chemicals
3.2.2. Synthesis of POM-Based Ionic Liquids: Synthesis of (P6,6,6,14)4[W10O32] (1)
3.2.3. General method for the synthesis of other POM-ILs (Compounds 2, 3 and 4)
3.3. Experimental Procedure for Catalysis Experiments
3.3.1. Experimental Procedures for the Oxidation of the 2-(Trifluoromethyl)benzyl Alcohol with Different POM-ILs
3.3.2. Experimental Procedure for Oxidation of Alcohols
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
Sample Availability
References
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Compound | Glass Transition Temperature (°C) | Viscosity at 20 °C in Pa/s | Viscosity at 100 °C in Pa/s | Rheological Behavior | Class |
---|---|---|---|---|---|
P66614Cl | −64 | 0.86 | 0.04 | Newtonian | liquid |
(P6,6,6,14)4[W10O32]; 1 | −10 | 2200 | 0.92 | Newtonian | liquid |
(P6,6,6,14)8[SiW10O36]·3.7P6,6,6,14Cl 10.5H2O; 2 | −68 | 21 | 0.07 | Dilatant | liquid |
(P6,6,6,14)4[PMo11VO40]; 3 | −3.5 | 12,000 | 10.5 | pseudoplastic | resin |
(P6,6,6,14)6[P2Mo18O62]·0.3(P6,6,6,14Cl); 4 | −1 | 19,500 | 19 | pseudoplastic | resin |
Entry a | Catalyst | Conversion (%) b | Aldehyde Yield (%) b | Acid Yield (%) b |
---|---|---|---|---|
A | / | 3 | 0 | 0 |
B | 1 | 98 | 6 | 86 (82) c |
C | 2 | 96 | 0 | 90 |
D | 3 | 50 | 21 | 21 |
E | 4 | 33 | 26 | 0 |
Entry a | Substrate | Product | Yield (%) b |
---|---|---|---|
1 | 74 | ||
2 | 82 | ||
3 | 63 | ||
4 | 63 | ||
5 | 43 | ||
6 | 45 | ||
7 | 32 |
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Martinetto, Y.; Basset, S.; Pégot, B.; Roch-Marchal, C.; Camerel, F.; Jeftic, J.; Cottyn-Boitte, B.; Magnier, E.; Floquet, S. Synthesis, Physical Properties and Application of a Series of New Polyoxometalate-Based Ionic Liquids. Molecules 2021, 26, 496. https://doi.org/10.3390/molecules26020496
Martinetto Y, Basset S, Pégot B, Roch-Marchal C, Camerel F, Jeftic J, Cottyn-Boitte B, Magnier E, Floquet S. Synthesis, Physical Properties and Application of a Series of New Polyoxometalate-Based Ionic Liquids. Molecules. 2021; 26(2):496. https://doi.org/10.3390/molecules26020496
Chicago/Turabian StyleMartinetto, Yohan, Salomé Basset, Bruce Pégot, Catherine Roch-Marchal, Franck Camerel, Jelena Jeftic, Betty Cottyn-Boitte, Emmanuel Magnier, and Sébastien Floquet. 2021. "Synthesis, Physical Properties and Application of a Series of New Polyoxometalate-Based Ionic Liquids" Molecules 26, no. 2: 496. https://doi.org/10.3390/molecules26020496