Frustrated Radical Pairs: Insights from EPR Spectroscopy.

Frustrated Radical Pairs: Insights from EPR Spectroscopy.
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DOI:
10.1002/anie.202010633
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发表时间:
2021-01-04
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
通讯作者:
Melen RL
Melen RL
中科院分区:
其他
文献类型:
--
作者:
Dasgupta A;Richards E;Melen RL

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受挫路易斯对(FLP)化学的进展揭示了主族元素在催化中的重要性,为合成化学开辟了新的途径。最近,受挫路易斯对的新反应性被发现,揭示了路易斯酸和碱的某些组合经历了单电子转移(SET)过程。在这种情况下,电子可以从刘易斯碱性给体转移到刘易斯酸性受体上,从而产生反应性受挫自由基对(FRP)。这篇小型综述旨在展示这一新兴领域的最新进展,涵盖了受挫自由基对的合成和反应性,并广泛强调了电子顺磁共振(EPR)光谱的结果,以解释观察到的不同自由基种类的性质和稳定性。单人间还是双人间?这篇迷你综述强调了最近受挫的路易斯对的新反应性,揭示了路易斯酸和碱的某些组合经历了单电子转移过程。在这些研究中,电子顺磁共振波谱在阐明反应途径方面发挥了重要作用。
Progress in frustrated Lewis pair (FLP) chemistry has revealed the importance of the main group elements in catalysis, opening new avenues in synthetic chemistry. Recently, new reactivities of frustrated Lewis pairs have been uncovered that disclose that certain combinations of Lewis acids and bases undergo single‐electron transfer (SET) processes. Here an electron can be transferred from the Lewis basic donor to a Lewis acidic acceptor to generate a reactive frustrated radical pair (FRP). This minireview aims to showcase the recent advancements in this emerging field covering the synthesis and reactivities of frustrated radical pairs, with extensive highlights of the results from Electron Paramagnetic Resonance (EPR) spectroscopy to explain the nature and stability of the different radical species observed. Single or Double? This Minireview highlights the recent new reactivities of frustrated Lewis pairs that disclose that certain combinations of Lewis acids and bases undergo single‐electron transfer processes. In these studies, Electron Paramagnetic Resonance spectroscopy has been instrumental in the elucidation of reaction pathways.
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