Fig. 3: Calculated orbitals of pentacene on the Ag(110) cluster.
From: Ultrafast orbital tomography of a pentacene film using time-resolved momentum microscopy at a FEL

Orbitals with a major contribution of (a) LUMO-, (b) HOMO-, and (c) (HOMO-1)-type character. The orbitals do not noticeably change with the increase of the cluster size in any direction. The orbitals are visualized using the VESTA software49.