Organic and Polymeric Semiconductors Enhanced by Noncovalent Conformational Locks

Constructing highly planar, extended π-electron systems is an important strategy for achieving high-mobility organic semiconductors. In general, there are two synthetic strategies for achieving π-conjugated systems with high planarity. The conventional strategy connects neighboring aromatic rings through covalent bonds to restrict the rotation about single bonds. However, this usually requires a complex sequence of synthetic steps to achieve this target, which can be costly and labor-intensive. More recently, noncovalent through-space intramolecular interactions, which are defined here as noncovalent conformational locks, have been employed with great success to increase the planarity and rigidity of extended…

• NN
  National Natural Science Foundation of China

  Awards: 51303180, 21574135
• CA
  Chinese Academy of Sciences
• NS
  Natural Science Foundation of Beijing Municipality

  Award: 2162043
• YU
  Yasuj University of Medical Sciences
• DO
  Division of Materials Research

  Award: DMR-1121262
• AF
  Air Force Office of Scientific Research

  Award: FA9550-15-1-0044