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. 2018 May 29;9(12):3271–3277. doi: 10.1021/acs.jpclett.8b01470

Figure 1.

Figure 1

Comparison of 2D (elbow) contour plots for the dissociative chemisorption of O2 on Al(111) generated by the FPLEPS PES (left column) and the raw ECW data (right column), with O2 oriented parallel at the fcc site with //1 (a,f), //2 (b,g), and //3 (c,h), perpendicular at the fcc site (d,i) as a function of Al–O (dAl–O) and O–O distances (r), and parallel at the bridge site (e,j) as a function of molecular height above surface (z) and r. Energies are in electronvolts. The zero of energy corresponds to that of O2 at its equilibrium geometry (r = 1.25 Å) at a distance of 6 Å above the surface.