High-Quality 2D Metal−Organic Coordination Network Providing Giant Cavities within Mesoscale Domains

A surface-supported open metal−organic nanomesh featuring a 24 nm2 cavity size and extending to μm domains was fabricated by Co-directed assembly of para-hexaphenyl-dicarbonitrile linker molecules in two dimensions. The metallosupramolecular lattice is thermally robust and resides fully commensurate on the employed Ag(111) substrate as directly verified by high-resolution scanning tunneling microscopy observations.