Abstract
Ionic liquids are currently being used in combination with supercritical fluids for catalytic reactions due to the ease of extraction of reaction products by fluids from such bi-phasic systems. In this investigation we report interesting chemistry involving a simple salt hydrate, tetramethylammonium fluoride tetrahydrate, [(CH3)4N]F·4H2O, as a neat melt and dissolved in methanol in contact with supercritical and subcritical CO2. This hydrate is proposed as a simulant for more complex ionic liquids, to investigate any potential secondary reaction chemistry in these solvent systems with carbon dioxide. Evidence is presented for the formation of methylcarbonate, CH3O(C=O)O-, and fluoromethane, CH3F, in solution when the salt hydrate is in contact with methanol and CO2.
| Original language | English |
|---|---|
| Pages (from-to) | 257-263 |
| Number of pages | 7 |
| Journal | Journal of Supercritical Fluids |
| Volume | 29 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - May 2004 |
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Keywords
- High-pressure NMR
- Ionic liquid
- Methylcarbonate
- Salt hydrate
- Supercritical fluids
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
Cite this
A high-pressure NMR investigation of reaction chemistries in a simple salt hydrate. / Yonker, Clement R.; Linehan, John.
In: Journal of Supercritical Fluids, Vol. 29, No. 3, 05.2004, p. 257-263.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - A high-pressure NMR investigation of reaction chemistries in a simple salt hydrate
AU - Yonker, Clement R.
AU - Linehan, John
PY - 2004/5
Y1 - 2004/5
N2 - Ionic liquids are currently being used in combination with supercritical fluids for catalytic reactions due to the ease of extraction of reaction products by fluids from such bi-phasic systems. In this investigation we report interesting chemistry involving a simple salt hydrate, tetramethylammonium fluoride tetrahydrate, [(CH3)4N]F·4H2O, as a neat melt and dissolved in methanol in contact with supercritical and subcritical CO2. This hydrate is proposed as a simulant for more complex ionic liquids, to investigate any potential secondary reaction chemistry in these solvent systems with carbon dioxide. Evidence is presented for the formation of methylcarbonate, CH3O(C=O)O-, and fluoromethane, CH3F, in solution when the salt hydrate is in contact with methanol and CO2.
AB - Ionic liquids are currently being used in combination with supercritical fluids for catalytic reactions due to the ease of extraction of reaction products by fluids from such bi-phasic systems. In this investigation we report interesting chemistry involving a simple salt hydrate, tetramethylammonium fluoride tetrahydrate, [(CH3)4N]F·4H2O, as a neat melt and dissolved in methanol in contact with supercritical and subcritical CO2. This hydrate is proposed as a simulant for more complex ionic liquids, to investigate any potential secondary reaction chemistry in these solvent systems with carbon dioxide. Evidence is presented for the formation of methylcarbonate, CH3O(C=O)O-, and fluoromethane, CH3F, in solution when the salt hydrate is in contact with methanol and CO2.
KW - High-pressure NMR
KW - Ionic liquid
KW - Methylcarbonate
KW - Salt hydrate
KW - Supercritical fluids
UR - http://www.scopus.com/inward/record.url?scp=16544381014&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=16544381014&partnerID=8YFLogxK
U2 - 10.1016/S0896-8446(03)00089-5
DO - 10.1016/S0896-8446(03)00089-5
M3 - Article
VL - 29
SP - 257
EP - 263
JO - Journal of Supercritical Fluids
JF - Journal of Supercritical Fluids
SN - 0896-8446
IS - 3
ER -