Open AccessEnantiosensitive Bonding of Chiral Molecules on a Magnetic Substrate Investigated by Means of Electron Spectroscopies
Author(s) -
Francisco Luque,
Miguel Ángel Niño,
M.J. Spilsbury,
I.A. Kowalik,
D. Arvanitis,
J. J. de Miguel
Publication year - 2018
Publication title -
chimia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.387
H-Index - 55
eISSN - 2673-2424
pISSN - 0009-4293
DOI - 10.2533/chimia.2018.418
Subject(s) - molecule , substrate (aquarium) , materials science , electron , nanotechnology , chemical physics , chemistry , crystallography , physics , organic chemistry , nuclear physics , oceanography , geology
The adsorption of purely organic chiral molecules on ferromagnetic Co thin films is studied under ultra high vacuum conditions by means of synchrotron radiation-based electron spectroscopies, namely X-ray absorption and ultraviolet photoemission. X-ray absorption reveals that enantiomers with opposite handedness (R,R)– and (S,S)– of two different molecules adsorb with different strength on the Co surfaces and their valence band photoemission spectra also display distinctive features. In view of the recent reports describing the chiral-induced spin selectivity (CISS) effect these results lead us to consider the possibility that some enantiosensitivity may appear when bonding chiral molecules to a substrate with an initial asymmetry in the population of the different spin orientations.