Fig. 5: Ligand structure of OLAC on magnetite.

Ligand structure on magnetite (001) (a, b) and on (111) (e) at OLAC/oleate coverages indicated below the structures. Exemplary adsorption configurations of OLAC/oleate on magnetite, i.e. molecular (I), bidentate (II), quasi-bidentate (III) and chelating (IV), are shown in the insets of (c) and (f) and are explained in the main text. Different colors are used in (c) and (f) to indicate angles Θ between C–OA (C = OA in the case of OLAC) and the surface plane. Colors refer to the structures (I–IV) given in the inset. Histograms in (d) and (g) show the distribution of Θ for the highest coverage on both surfaces.