ol8b00565_si_001.pdf (4.04 MB)
Supramolecular Polymerization of [5]Helicenes. Consequences of Self-Assembly on Configurational Stability
journal contribution
posted on 2018-03-20, 16:20 authored by Jorge
S. Valera, Rafael Gómez, Luis SánchezThe supramolecular polymerization
of [5]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 [5]helicenes.