Figure 2 | Scientific Reports

Figure 2

From: Ullmann Coupling Reactions on Ag(111) and Ag(110); Substrate Influence on the Formation of Covalently Coupled Products and Intermediate Metal-Organic Structures

Figure 2

(a) STM image of Ag(111) surface after deposition of DITP, including approximate crystallographic directions of the surface lattice. Zigzag structure shown in green (\({V}_{sample-bias}\) = −1.5 V, \({I}_{set-point}\) = 5.0 pA). (b) Average of 10 line profiles taken along the different directions of the zigzag (red and blue lines shown in (a) and inset). Intermolecular separation is consistent with a metal-organic structure. (c) Close-up of the DITP island in (a) with adsorption model and dimensions overlaid (\({V}_{sample-bias}\) = 1.0 V \({I}_{set-point}\) = 5.0 pA). (d) Adsorption model for DITP on Ag(111) with overlaid molecular lattice (red), commensurate overlayer structure (black dashed) and surface lattice vectors (top right). Light blue silver adatoms rest in three-fold hollow sites, dark blue in atop sites.

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