Kagome-like lattice of π–π stacked 3-hydroxyphenalenone on Cu(111)

Abstract

We have identified a structurally complex double-layer of 3-hydroxyphenalenone on Cu(111), which exhibits Kagome lattice symmetry. A key feature is the perpendicular attachment of π–π stacked molecular dimers on top of molecules that are flat-lying on the substrate, representing a rare example of a three-dimensional arrangement of molecules on a two-dimensional surface.