An optimized nucleophilic synthetic approach featuring mild conditions and microwave energy was utilized to circumvent the classical Ullman procedure and access a polynitronyl nitroxide radical easily and in pure form. The simultaneous controlled introduction of preformed nitronyl nitroxide radicals on a cyclotriphosphazene core leads to a novel polyphosphazene monomer which is suitable for both n- and a p-type redox-active material in organic rechargeable batteries as demonstrated by electrochemistry. Additionally, absorption spectra and square-wave voltammetry were utilized to quantify the number of nitronyl nitroxide radical units on the cyclotriphosphazene scaffold.

中文翻译：

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合成获得的纯多自由基体系结构：硝基三氧化氮在环三磷腈支架上的亲核插入。

利用具有温和条件和微波能量的优化亲核合成方法来规避经典的Ullman方法，并以纯净形式轻松获得聚亚硝基硝基氧自由基。在环三磷腈核上同时控制地引入预先形成的亚硝酰基硝基氧自由基会产生一种新型的聚磷腈单体，该单体既适用于有机可充电电池中的n型也适用于p型氧化还原活性材料，这已通过电化学证明。另外，利用吸收光谱和方波伏安法来定量环三磷腈支架上的硝酰基硝基氧化物自由基单元的数量。