Doubling the Length of the Longest Pyrene‐Pyrazinoquinoxaline Molecular Nanoribbons

摘要

Abstract Molecular nanoribbons are a class of atomically‐precise nanomaterials for a broad range of applications. An iterative approach that allows doubling the length of the longest pyrene‐pyrazinoquinoxaline molecular nanoribbons is described. The largest nanoribbon obtained through this approach—with a 60 linearly‐fused ring backbone (14.9?nm) and a 324‐atoms core (C276N48)—shows an extremely high molar absorptivity (values up to 1?198?074?M?1?cm?1) that also endows it with a high molar fluorescence brightness (8700?M?1?cm?1).