Impact of the position of the imine linker on the optoelectronic performance of π-conjugated organic frameworks†,Molecular Systems Design & Engineering

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Impact of the position of the imine linker on the optoelectronic performance of π-conjugated organic frameworks†
Molecular Systems Design & Engineering ( IF 3.2 ) Pub Date : 2018-12-06 00:00:00 , DOI: 10.1039/c8me00079d
Samrat Ghosh _{1,

2,

3,

4,

5} , Yusuke Tsutsui _{1,

2,

3,

4,

5} , Katsuaki Suzuki _{3,

5,

6,

7} , Hironori Kaji _{3,

5,

6,

7} , Kayako Honjo _{5,

8,

9,

10,

11} , Takashi Uemura _{5,

8,

9,

10,

11} , Shu Seki _{1,

2,

3,

4,

5}

Affiliation

Conjugated organic frameworks are an interesting class of functional porous organic materials having a π-conjugated backbone with permanent porosity. These materials are potential candidates for optoelectronic applications. Although there are several reports on the structure–property relationship between π-conjugated building blocks and optoelectronic performance, the influence of the linker position is hitherto unknown. We report two novel imine-linked 2D π-conjugated polymers which are positional isomers of each other consisting of pyrene and anthracene units. The polymers exhibited similar optical and electronic properties under ambient conditions. Upon I₂ doping, one of the isomers exhibited high radical density and enhanced conductivity due to energetically favoured chemical oxidation. The linker position dramatically affects the optoelectronic performance of these polymers even though they have the same π-conjugated backbone.

中文翻译：

亚胺连接基的位置对π共轭有机骨架的光电性能的影响†

共轭有机骨架是一类有趣的功能性多孔有机材料，其具有具有永久孔隙的π共轭骨架。这些材料是光电应用的潜在候选者。尽管有几篇关于π共轭结构单元与光电性能之间的结构－性质关系的报道，但迄今为止，对连接子位置的影响尚不清楚。我们报告了两个新颖的亚胺连接的2Dπ共轭聚合物，它们是由pyr和蒽单元组成的彼此的位置异构体。该聚合物在环境条件下表现出相似的光学和电子性质。在我₂掺杂后，由于大力促进了化学氧化，其中一种异构体表现出高的自由基密度和增强的电导率。即使这些聚合物具有相同的π共轭骨架，接头位置也会极大地影响这些聚合物的光电性能。

更新日期：2018-12-06

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