Journal
ORGANIC LETTERS
Volume 6, Issue 19, Pages 3317-3320Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol048770t
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A m-phenylene ethynylene oligomer containing a helicene unit was synthesized to bias the twist sense of the folded helical conformation. The CD spectra of the helicene oligomer exhibited large Cotton effects that varied greatly with the solvent composition, including three separate conformational transitions.
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