Solvent-Directed Modulation of Stacking Isomers in Single-Crystal One-Dimensional Covalent Organic Frameworks.
Stacking isomerism in covalent organic frameworks (COFs) has long remained elusive, with no unambiguous single-crystal structure confirmation to date. Herein, we present the first definitive structural resolution of stacking isomers in one-dimensional COFs, enabled by a solvent-directed modulation strategy. Two distinc...