A Computational and Experimental Study of the Conformers of Pyrrolidinium Ionic Liquid Cations Containing an Ethoxy Group in the Alkyl Side Chain

Figure 5

Comparison of the absorbance of FSI measured at 300 and 130 K (a) and the calculated absorbance spectra of four conformers of (b–e).

(a)

(b)

(c)

(d)

(e)