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Conformational evol...
Conformational evolution of TFSI− in protic and aprotic ionic liquids
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- Martinelli, Anna, 1978 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Matic, Aleksandar, 1968 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Johansson, Patrik, 1969 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Jacobsson, Per, 1958 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Börjesson, Lars, 1957 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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Fernicola, Alessandra (author)
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Panero, Stefania (author)
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Scrosati, Bruno (author)
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Ohno, H. (author)
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(creator_code:org_t)
- 2011
- 2011
- English.
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In: Journal of Raman Spectroscopy. - 0377-0486 .- 1097-4555.
- Related links:
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https://research.cha...
Abstract
Subject headings
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- We here report on the conformational evolution of the bis(trifluoromethanesulfonyl)imide anion (TFSI−) in protic and aprotic TFSI−-based ionic liquids as a function of temperature. The investigation is performed by Raman spectroscopy in the spectral ranges 240-380 cm−1 and 715-765 cm−1, where the interference from bands due to the cations is negligible. The contribution from each TFSI− conformation, i.e. the cisoid (C1) and the transoid (C2), is quantified in order to estimate the enthalpy of conformational change, ΔH, which is found to be in the range 3.4–7.3 kJ/mol in the liquid state. Conformational information is for the first time determined from the 740 cm−1 band, which previously mainly has been used as an indicator of ion-ion interactions. The similarity in ΔH values obtained from the two spectral ranges demonstrates the validity of using also the 740 cm−1 band for the quantification of the TFSI conformational evolution.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Annan teknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Other Engineering and Technologies (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- TFSI
- Ionic liquids
- Raman Spectroscopy
- conformation
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Martinelli, Anna ...
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Matic, Aleksanda ...
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Johansson, Patri ...
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Jacobsson, Per, ...
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Börjesson, Lars, ...
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Fernicola, Aless ...
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show more...
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Panero, Stefania
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Scrosati, Bruno
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Ohno, H.
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show less...
- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Other Engineerin ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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Journal of Raman ...
- By the university
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Chalmers University of Technology