Reveals new class of carbene-based radicals in imidazolium salts, indicating novel photochemical applications.
, highlighting σ-π hyperconjugation as the dominant stabilization motif. These findings identify imidazolium-derived σ-complex radicals as a unique class of carbene-based open-shell species and showcase imidazolium cations as noninnocent, redox-active platforms for controlled radical generation under mild photochemical conditions.
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Kolomeychuk et al. (2026) studied this question.
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