Solvation of Carbon Dioxide in [C4mim][BF4] and [C4mim][PF6] Ionic Liquids Revealed by High-Pressure NMR Spectroscopy†
Dr. Marta C. Corvo
REQUIMTE-CQFB, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal)
Search for more papers by this authorDr. João Sardinha
REQUIMTE-CQFB, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal)
Search for more papers by this authorDr. Sonia C. Menezes
PETROBRAS/CENPES, 21941-915 Rio de Janeiro, R.J. (Brazil)
Search for more papers by this authorProf. Dr. Sandra Einloft
PUCRS, Fac. Química, BR-90619900 Porto Alegre, RS (Brazil)
Search for more papers by this authorProf. Dr. Marcus Seferin
PUCRS, Fac. Química, BR-90619900 Porto Alegre, RS (Brazil)
Search for more papers by this authorProf. Dr. Jairton Dupont
Inst. Química-UFRGS, Av. Bento Gonçalves 9500, Porto Alegre (Brazil)
Search for more papers by this authorDr. Teresa Casimiro
REQUIMTE-CQFB, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal)
Search for more papers by this authorCorresponding Author
Prof. Dr. Eurico J. Cabrita
REQUIMTE-CQFB, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal)
REQUIMTE-CQFB, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal)===Search for more papers by this authorDr. Marta C. Corvo
REQUIMTE-CQFB, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal)
Search for more papers by this authorDr. João Sardinha
REQUIMTE-CQFB, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal)
Search for more papers by this authorDr. Sonia C. Menezes
PETROBRAS/CENPES, 21941-915 Rio de Janeiro, R.J. (Brazil)
Search for more papers by this authorProf. Dr. Sandra Einloft
PUCRS, Fac. Química, BR-90619900 Porto Alegre, RS (Brazil)
Search for more papers by this authorProf. Dr. Marcus Seferin
PUCRS, Fac. Química, BR-90619900 Porto Alegre, RS (Brazil)
Search for more papers by this authorProf. Dr. Jairton Dupont
Inst. Química-UFRGS, Av. Bento Gonçalves 9500, Porto Alegre (Brazil)
Search for more papers by this authorDr. Teresa Casimiro
REQUIMTE-CQFB, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal)
Search for more papers by this authorCorresponding Author
Prof. Dr. Eurico J. Cabrita
REQUIMTE-CQFB, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal)
REQUIMTE-CQFB, Dep. Química, Fac. Ciências e Tecnologia, UNL, 2829-516 Caparica (Portugal)===Search for more papers by this authorThis work was supported by Petróleo Brasileiro SA-PETROBRAS, Fundação para a Ciência e Tecnologia (FCT) and Ministério da Educação (CQFB Strategic Project PEst-C/EQB/LA0006/2011 and Project PTDC/QUI-QUI/098892/2008). The NMR spectrometers are part of the National NMR Network (RNRMN) and are funded by FCT (RECI/BBB-BQB/0230/2012).
Graphical Abstract
Where is CO2? The intermolecular interactions of [C4mim]BF4 and [C4mim]PF6 ionic liquids and CO2 have been determined by high-pressure NMR spectroscopy in combination with molecular dynamic simulations. The anion and the cation are both engaged in interactions with CO2. A detailed picture of CO2 solvation in these ILs is provided. CO2 solubility is essentially determined by the microscopic structure of the IL.
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