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(a and b) Representative mid-ester substituted molecules and reference C16 system; the direction of the dipole moment relative to the molecular backbone is schematically shown. (b) SAM-induced WF changes and (c) C 1s XP spectra of the three systems shown in panel a. Individual peaks in the spectra are color-coded, accompanied also by the schematic drawings of the embedded groups. Adapted with permission from ref (28). Copyright 2017 American Chemical Society.
