Low-Q peak in X-ray patterns of choline-phenylalanine and -homophenylalanine: A combined effect of chain and stacking
- Autori: Campetella, M.; Chillura Martino, D.; Scarpellini, E.; Gontrani, L.
- Anno di pubblicazione: 2016
- Tipologia: Articolo in rivista (Articolo in rivista)
- Parole Chiave: Aminoacids; Choline; Ionic liquids; Phenylalanine; SAXS; Physics and Astronomy (all); Physical and Theoretical Chemistry
- OA Link: http://hdl.handle.net/10447/212658
Abstract
In this contribution we report for the first time the X-ray patterns of choline-phenylalanine and choline-homophenylalanine ionic liquids. The presence of a low Q peak in both systems is another evidence that a long alkyl chain is not always needed to establish a nanodomain segregation in the liquid sufficient to be revealed by the diffraction experiment. These new data are compared with the diffraction patterns and the theoretical calculations of other choline-aminoacid ionic liquids recently reported. A significant role might be played by the stacking interactions between aromatic rings.