Conformational evolution of TFSI− in protic and aprotic ionic liquids (pages 522–528)
Anna Martinelli, Aleksandar Matic, Patrik Johansson, Per Jacobsson, Lars Börjesson, Alessandra Fernicola, Stefania Panero, Bruno Scrosati and Hiroyuki Ohno
Version of Record online: 22 JUN 2010 | DOI: 10.1002/jrs.2713
The enthalpy of conformational change from the transoid (C2) to the cisoid (C1) as a function of temperature is reported for protic and aprotic ionic liquids of the bis(trifluoromethanesulfonyl)imide (TFSI) anion. We compare the results of a band-fitting analysis of the two spectral ranges 240– 380 and 715– 765 cm−1, demonstrating, for the first time, that the 740 cm−1 strong Raman band can be used to quantify the TFSI− conformational evolution.