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用时间分辨电子自旋共振波谱仪研究了光解蒽醌/乙二醇、蒽醌/乙二醇/氮氧自由基体系的化学诱导动态电子自旋极化.实验结果指出,在蒽醌/乙二醇/氮氧自由基(AQ/EG/TEMPO)体系中,存在自由基三重态对(RTPM)和三重态(TM)极化的竞争,并由此讨论了三重态-自由基对的反应速率.
The time-resolved electron spin resonance spectroscopy was used to study the chemical induced dynamic electron spin polarization of anthraquinone / ethylene glycol and anthraquinone / ethylene glycol / nitroxide radicals. The experimental results show that the anthraquinone / In the glycol / nitroxide (AQ / EG / TEMPO) system, there exists competition between free triplet (RTPM) and triplet (TM) polarizations, and thus the triplet-free radical reaction speed.