Wurster‐Type Anthanthrene Polyradicaloid Cations,Macromolecular Rapid Communications

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Wurster‐Type Anthanthrene Polyradicaloid Cations
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2018-05-28 , DOI: 10.1002/marc.201800214
Maude Desroches ₁ , Jean-François Morin ₁

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4,10‐dibromoanthanthrone, a highly robust building block, is used to synthesize a bis(triarylamine) polymer. The polymer can be oxidized twice to form a polycationic macromolecule showing magnetic properties by electron paramagnetic resonance spectroscopy. In its dicationic state, the presence of isolated radicals is possible because of the interrupted conjugation between the diphenylamine with the anthanthrone core. The high steric hindrance prevents the planarity of the adjacent groups resulting in a polyradical cationic polymer. The oxidized polymer has a strong absorption in the near‐infrared region along with reversible redox stages.

中文翻译：

Wurster型蒽蒽多自由基阳离子

4,10-二溴蒽醌是一种高度坚固的结构单元，用于合成双（三芳基胺）聚合物。该聚合物可以被氧化两次以形成聚阳离子大分子，该聚阳离子大分子通过电子顺磁共振波谱法显示出磁性。在其表面状态下，由于二苯胺与蒽酮核心之间的间断共轭作用，可能存在孤立的自由基。高的空间位阻阻止了相邻基团的平面性，从而导致了聚自由基阳离子聚合物。氧化的聚合物在可逆的氧化还原阶段以及在近红外区域具有很强的吸收能力。

更新日期：2018-05-28

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