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DELIA FRANCESCA CHILLURA MARTINO

Low-Q peak in X-ray patterns of choline-phenylalanine and -homophenylalanine: A combined effect of chain and stacking

  • Authors: Campetella, M.; Chillura Martino, D.; Scarpellini, E.; Gontrani, L.
  • Publication year: 2016
  • Type: Articolo in rivista (Articolo in rivista)
  • Key words: 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.