Journal articles
Cyclobishelicenes: shape-persistent figure-eight aromatic molecules with promising chiroptical properties
Abstract : Cyclobis[n]helicenes (n = 3 or 5) are chiral D2-symmetric p-conjugated macrocycles with stable lemniscular, or figure-eight, shapes. The conformational analysis of five different cyclobis[n]helicenes revealed that these molecules can only exist as their lemniscular conformers with high barriers to enantiomerization (>200 kJ.mol-1). The enantiomers of a cyclobis[5]helicene were resolved by HPLC and their unusual chiroptical properties were attributed to the inherent chirality of their macrocyclic figure-eight.
Cited literature [31 references]
https://hal-amu.archives-ouvertes.fr/hal-02265747
Contributor : Yannick Carissan <>
Submitted on : Thursday, October 24, 2019 - 4:06:47 PM
Last modification on : Monday, January 4, 2021 - 12:30:20 PM
Long-term archiving on: : Saturday, January 25, 2020 - 4:56:46 PM
Contributor : Yannick Carissan <>
Submitted on : Thursday, October 24, 2019 - 4:06:47 PM
Last modification on : Monday, January 4, 2021 - 12:30:20 PM
Long-term archiving on: : Saturday, January 25, 2020 - 4:56:46 PM
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