Chain‐Length Dependence of the Optical Activity of Helical Triptycene‐Based π‐Conjugated Ladder Polymers

URN to cite this document:: urn:nbn:de:bvb:355-epub-752198
DOI to cite this document:: 10.5283/epub.75219

Ammenhäuser, Robin ; Lupton, John M.

; Scherf, Ullrich

License: Creative Commons Attribution Non-commercial 4.0
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Date of publication of this fulltext: 11 Mar 2025 13:57

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Abstract

Helical ladder polymers are designed by connecting planar indenofluorene chromophores by chiral triptycene linkers. The resulting hexagonal helices exhibit a substantial degree of homoconjugation across the triptycene knots, with saturation above ≈20 repeat units. The chiroptical anisotropy values gabs = Δε/ε of the lower-energy lobes of the red-most couplets in the circular dichroism (CD) ...