Novel diethynylcarbazole macrocycles: synthesis and optoelectronic properties.
Novel diethynylcarbazole macrocycles: synthesis and optoelectronic properties.
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DOI：
10.1021/jo0611869
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发表时间：
2006-08
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影响因子：
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通讯作者：
Tianyu Zhao;Zhanxiang Liu;Yabin Song;W. Xu;Deqing Zhang;Daoben Zhu
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文献类型：
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作者：
Tianyu Zhao;Zhanxiang Liu;Yabin Song;W. Xu;Deqing Zhang;Daoben Zhu
通过氧化偶联反应合成了二乙炔基咔唑大环化合物1b和2b。特别地，大环2b通过双分子Pd催化氧化偶联以35%的分离产率制备。详细测量了这些大环化合物及其前体的光谱性质。采用浸渍法和LB膜技术制备了这些大环化合物的薄膜，研究了它们的光诱导电荷转移特性。在白色光照射下，这些薄膜在三电极电池中产生了快速而稳定的阴极光电流。提出了光诱导电子转移途径的可能机制。
Diethynylcarbazole macrocycles 1b and 2b have been synthesized by oxidative coupling of appropriate precursors. In particular, macrocycle 2b was prepared by bimolecular Pd-catalyzed oxidative coupling in 35% isolated yield. The spectroscopic properties of these macrocycles and their precursors were measured in detail. The films of these macrocycles by the dipping method and the Langmuir-Blodgett technique were fabricated to study their photoinduced charge-transfer properties. A rapid and steady cathodic photocurrent of these films was produced in a three-electrode cell when irradiated with white light. A possible mechanism of the photoinduced electron-transfer pathway was suggested.