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Updated: Jul 4, 2026

Self-assembling Morphologies Obtained from Helical Polycarbodiimide Copolymers and Their Triazole Derivatives
Published on: February 7, 2017
Axially Chiral Cross-Shaped Bianthracene Architectures With Chiroptical Activity and Electrochemical Polymerization
Yuka Mukai1, Mana Yoneda1, Katsutoshi Ohta1
1Department of Applied Chemistry, Graduate School of Engineering, University of Hyogo, Himeji, Hyogo, Japan.
None:
Four bianthracene derivatives possessing cross-shaped structures were synthesized, in which diphenylaminophenyl (DPAP) or various carbazole units were introduced at the 2,6-positions. These compounds function as blue-emitting luminescent materials, and optical resolution was successfully achieved for two of them. The CD spectra of the resolved enantiomers exhibited mirror-image profiles, and circularly polarized luminescence (CPL) was observed with a glum value of 2.0 × 10-3. Electrochemical studies in solution revealed that the carbazole-containing derivatives underwent oxidative polymerization, leading to the formation of thin films that exhibited electrochromic behavior. Among the four compounds, the DPAP- and ethylcarbazole-substituted derivatives functioned as p-type semiconductors in field-effect transistors (FETs), showing charge-carrier mobilities on the order of 10-5-10-6 cm2 V-1 s-1. These results highlight the potential of cross-shaped bianthracene frameworks as multifunctional organic materials combining chiroptical activity, electrochemical polymerizability, and semiconducting properties.
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