Systematic Synthesis and Properties Evaluation of Dicationic Ionic Liquids, and a Glance Into a Potential New Field
Dicationic ionic liquids (DILs), a subset of the ionic liquid (IL) family, have attracted growing interest in recent years, and the range of applications within which they are investigated is constantly expanding. However, data which allows structure to property correlation of a DIL is still limited...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2018-12-01
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| Series: | Frontiers in Chemistry |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fchem.2018.00612/full |
| _version_ | 1818260933276860416 |
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| author | Luca Guglielmero Andrea Mezzetta Lorenzo Guazzelli Christian S. Pomelli Felicia D'Andrea Cinzia Chiappe |
| author_facet | Luca Guglielmero Andrea Mezzetta Lorenzo Guazzelli Christian S. Pomelli Felicia D'Andrea Cinzia Chiappe |
| author_sort | Luca Guglielmero |
| collection | DOAJ |
| description | Dicationic ionic liquids (DILs), a subset of the ionic liquid (IL) family, have attracted growing interest in recent years, and the range of applications within which they are investigated is constantly expanding. However, data which allows structure to property correlation of a DIL is still limited, and thus selecting an appropriate salt to address a specific challenge can be problematic. In comparison to traditional ILs, DILs physico-chemical properties can be tuned by changing the length and type of spacer which connects the cationic heads as well as the type of cation. This in turn could give rise to symmetrical or asymmetrical DILs. In this work, a systematic study of a homogeneous class of 12 dibromide DILs and 12 di-carboxylate salts has been performed. The latter class of DILs were also compared to mono cation derivatives. The different traditional exchange methods to prepare carboxylate DILs have been evaluated and an insight into the drawbacks encountered is also presented. Prepared DILs were characterized (NMR, TGA, DSC) allowing the influence of the structure on their thermal stability to be understood. Most DILs were obtained as solid salts after careful drying. For some of these compounds, a new possible application was studied, namely their use as hydrogen bond acceptors (HBA) of deep eutectic mixtures, showing again some significant structural related effects. |
| first_indexed | 2024-12-12T18:39:12Z |
| format | Article |
| id | doaj.art-a99a30170a4d46b0afc28302a21cd510 |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-12-12T18:39:12Z |
| publishDate | 2018-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-a99a30170a4d46b0afc28302a21cd5102022-12-22T00:15:41ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462018-12-01610.3389/fchem.2018.00612427688Systematic Synthesis and Properties Evaluation of Dicationic Ionic Liquids, and a Glance Into a Potential New FieldLuca GuglielmeroAndrea MezzettaLorenzo GuazzelliChristian S. PomelliFelicia D'AndreaCinzia ChiappeDicationic ionic liquids (DILs), a subset of the ionic liquid (IL) family, have attracted growing interest in recent years, and the range of applications within which they are investigated is constantly expanding. However, data which allows structure to property correlation of a DIL is still limited, and thus selecting an appropriate salt to address a specific challenge can be problematic. In comparison to traditional ILs, DILs physico-chemical properties can be tuned by changing the length and type of spacer which connects the cationic heads as well as the type of cation. This in turn could give rise to symmetrical or asymmetrical DILs. In this work, a systematic study of a homogeneous class of 12 dibromide DILs and 12 di-carboxylate salts has been performed. The latter class of DILs were also compared to mono cation derivatives. The different traditional exchange methods to prepare carboxylate DILs have been evaluated and an insight into the drawbacks encountered is also presented. Prepared DILs were characterized (NMR, TGA, DSC) allowing the influence of the structure on their thermal stability to be understood. Most DILs were obtained as solid salts after careful drying. For some of these compounds, a new possible application was studied, namely their use as hydrogen bond acceptors (HBA) of deep eutectic mixtures, showing again some significant structural related effects.https://www.frontiersin.org/article/10.3389/fchem.2018.00612/fulldicationic ionic liquidsthermal analysesdeep eutectic solventsTGADSC |
| spellingShingle | Luca Guglielmero Andrea Mezzetta Lorenzo Guazzelli Christian S. Pomelli Felicia D'Andrea Cinzia Chiappe Systematic Synthesis and Properties Evaluation of Dicationic Ionic Liquids, and a Glance Into a Potential New Field Frontiers in Chemistry dicationic ionic liquids thermal analyses deep eutectic solvents TGA DSC |
| title | Systematic Synthesis and Properties Evaluation of Dicationic Ionic Liquids, and a Glance Into a Potential New Field |
| title_full | Systematic Synthesis and Properties Evaluation of Dicationic Ionic Liquids, and a Glance Into a Potential New Field |
| title_fullStr | Systematic Synthesis and Properties Evaluation of Dicationic Ionic Liquids, and a Glance Into a Potential New Field |
| title_full_unstemmed | Systematic Synthesis and Properties Evaluation of Dicationic Ionic Liquids, and a Glance Into a Potential New Field |
| title_short | Systematic Synthesis and Properties Evaluation of Dicationic Ionic Liquids, and a Glance Into a Potential New Field |
| title_sort | systematic synthesis and properties evaluation of dicationic ionic liquids and a glance into a potential new field |
| topic | dicationic ionic liquids thermal analyses deep eutectic solvents TGA DSC |
| url | https://www.frontiersin.org/article/10.3389/fchem.2018.00612/full |
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