Exact helical polymer synthesis by directionally fixed connection of a C2-chiral 9,9[prime or minute]-spirobifluorene unit with a C2- or Cs-symmetric unit

Chem. Commun., 2013, 49,5486-5488
DOI: 10.1039/C3CC41685B, Communication

Ryota Seto, Yasuhito Koyama, Kun Xu, Susumu Kawauchi, Toshikazu Takata
Screw-shaped and coil-shaped exact helical polymers were synthesized by precisely controlling the connecting direction based on a two-point-connection protocol.
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