Exact helical polymer synthesis by directionally fixed connection of a C2-chiral 9,9′-spirobifluorene unit with a C2- or Cs-symmetric unit
作者:Ryota Seto、Yasuhito Koyama、Kun Xu、Susumu Kawauchi、Toshikazu Takata
DOI:10.1039/c3cc41685b
日期:——
Two types of exact helical polymers, screw-shaped and coil-shaped, consisting of right-angled C2-chiral 9,9â²-spirobifluorene skeletons were selectively synthesized based on a two-point-connection protocol by controlling the connecting direction between the monomers.
根据两点连接方案,通过控制单体之间的连接方向,选择性地合成了由直角 C2 手性 9,9â²-螺二芴骨架组成的两种精确螺旋聚合物(螺旋形和线圈形)。