Supramolecular Polymerization of Helicenes. Consequences of Self-Assembly on Configurational Stability
2018-03-20T16:20:30Z (GMT) by
The supramolecular polymerization of helicenes 1 and 2 is investigated. The self-assembly of these helicenes proceeds by the operation of H-bonding interactions with a negligible participation of π-stacking. The enantiopurity of the sample has a dramatic effect on the supramolecular polymerization mechanism since it reverts the isodesmic mechanism for the racemic mixture to a cooperative one for the enantioenriched sample. Noticeably, the formation of supramolecular polymers efficiently increases the configurational stability of 1,14-unsubstituted helicenes.