Spontaneous chirality conversion of [5]thiaheterohelicene in charge-transfer complexes in SDS micelles.

@article{Nakagawa2001SpontaneousCC,
  title={Spontaneous chirality conversion of [5]thiaheterohelicene in charge-transfer complexes in SDS micelles.},
  author={Hiroko Nakagawa and Yuuki Kobori and Koh-ichi Yamada},
  journal={Chirality},
  year={2001},
  volume={13 10},
  pages={722-6}
}
Racemic 2-hydroxymethylthieno[3,2-e:4,5-e']di[1]benzothiophene (5HM) with a labile helical structure was incorporated into aqueous SDS micelles containing (R)-2-(2,4,5,7-tetranitrofluoren-9-ylideneaminooxy)propionic acid (TAPA) to exhibit intense induced CD (ICD). Negative Cotton effects of the ICD gradually changed to reversed Cotton effects with time or sonication. This phenomenon of chirality conversion was attributable to conformational alterations of 5HM from an (M) helix to a (P… CONTINUE READING

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