Feedstock-Derived Thiophene Radical Anions Exhibiting Redox Stability at Extreme Potentials.

ABSTRACT: Organic radicals that are both readily synthesized from commodity chemicals and stable at extreme redox potentials are rare, yet highly desirable for applications in energy storage and organic electronics. Herein, we report feedstock-derived thiophene radical anions bearing ester functionalities that undergo galvanostatic charge-discharge redox cycling at potentials below -2 V versus Fc/Fc⁺ (Fc = ferrocene). Systematic structural modification led to the identification of a derivative exhibiting exceptional redox stability, showing promise as a scalable and low-cost electrolyte for electron storage applications. Further, a crystalline thiophene radical anion was isolated and characterized using structural, spectroscopic, and computational methods. These studies revealed that the

SUBMITTER: Gasser AC 

PROVIDER: S-EPMC12416472 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature