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Article Dans Une Revue Polymer Chemistry Année : 2014

Synthesis and chiral recognition ability of helical polyacetylenes bearing helicene pendants

Résumé

Novel polyacetylenes bearing an optically active or racemic [6]helicene unit as the pendant groups directly bonded to the main-chain (poly-1s) were prepared by the polymerization of the corresponding acetylenes (1-rac, 1-P, and 1-M) with a rhodium catalyst. The optically active polyacetylenes (poly-1-P and poly-1-M) formed a preferred-handed helical conformation biased by the optically active helicene pendants, resulting in the induced circular dichroism (ICD) in their π-conjugated polymer backbone regions. The optically active helical polymers, when employed as an enantioselective adsorbent, showed a high chiral recognition ability towards racemates, such as the monomeric [6]helicene and 1,1’-binaphthyl analogues, and enantioselectively adsorbed one of the enantiomers.

Domaines

Matériaux
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Dates et versions

hal-01082742 , version 1 (14-11-2014)

Identifiants

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Emmanuel Anger, Hiroki Iida, Tomoko Yamaguchi, Koutarou Hayashi, Daisuke Kumano, et al.. Synthesis and chiral recognition ability of helical polyacetylenes bearing helicene pendants. Polymer Chemistry, 2014, 5 (17), pp.4909-4914. ⟨10.1039/C4PY00692E⟩. ⟨hal-01082742⟩
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