Folding of a Supramolecular Framework Based on a Tetrametallic Clip Driven by π-π Interactions

Supramolecular extended frameworks based on a rotational molecular clip and having the same primary structure can exhibit either an unfolded or a folded framework. This process is driven by intramolecular pi-pi interactions, resulting in the formation of an infinite pi-stacked column within the folded supramolecular framework