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An Ethynylene-Bridged Pentacene Dimer: Two-Step Synthesis and Charge-Transport Properties.

Koki KawanoHironobu HayashiShinya YoshimotoNaoki ArataniMitsuharu SuzukiJun YoshinobuHiroko Yamada
Published in: Chemistry (Weinheim an der Bergstrasse, Germany) (2018)
A rigid and planar ethynylene-bridged pentacene dimer (PenD) was synthesized from pentacenequinone in two steps, skipping the conventional stepwise approach. A brickwork motif in the single crystal shows two-dimensionally extended electronic interaction in the solid state. Highly crystalline dip-coated films exhibited average hole mobility of 0.24 cm2  V-1  s-1 , comparable to that of the single-crystal organic field-effect transistors. This discovery and understanding of the reaction for the facile synthesis of ethynylene-bridged π-conjugated systems enables to the synthesis of a wide range of organic semiconducting materials.
Keyphrases
  • solid state
  • room temperature
  • water soluble
  • solar cells
  • high throughput