Division of Materials Science, Nara Institute of Science and Technology (NAIST), 8916-5 Takayama-cho, Ikoma, 630-0192, Japan.
The Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8581, Japan.
Chemistry. 2018 Oct 9;24(56):14916-14920. doi: 10.1002/chem.201803002. Epub 2018 Sep 11.
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 cm V s , 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.
刚性平面乙炔桥联五并苯二聚体（PenD）由五并苯醌两步合成，省略了传统的逐步方法。单晶中的砌块图案显示出在固态中二维扩展的电子相互作用。高度结晶的旋涂薄膜表现出 0.24 cm 2 V 1 s 的平均空穴迁移率，与单晶有机场效应晶体管相当。这种对易于合成乙炔桥联π共轭体系的反应的发现和理解，使得能够合成广泛的有机半导体材料。
