Figure 1 Inset.pxp

<div>(A) STM topographic image of FePc molecules on silicene/ZrB2 (17.53 nm x 8.71</div><div>nm; Vset = -1 V, Iset = 0.5 nA). The cross-shaped molecules adsorb at the edges of the striped</div><div>domains. The linear nature of these domains enables the creation chains of molecules on the</div><div>surface. The frontier molecular orbital can also be observed. In the inset, white lines have</div><div>been added between the silicene ‘up’ atoms to highlight the lattice and purple lines mark the</div><div>binding angle. (B) Same topographic image at positive bias (Vset = +1 V, Iset = 0.5 nA). The</div><div>molecules now have a triangular profile, and the domain boundaries, as well as kinks that</div><div>appear when a domain boundary shifts to a neighboring row of Si ‘up’ atoms, are more clearly</div><div>resolved. (C) dI/dV map of a FePc molecule bound upon a silicene domain boundary taken at</div><div>-0.7 V shows that the feature observed is the frontier orbital of the FePc molecule. (D) Lobes</div><div>of the dI/dV map plotted over topographic image of the molecule show the lobes align with</div><div>the molecule (Vset= -0.7V, Iset=0.5 nA).</div>