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A Well-Defined Cu─NHC (NHC═N─Heterocyclic Carbene) Complex for Energy-Transfer Photocatalysis
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DOI：10.1002/chem.71184.png)
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Abstract
En 中文
We report the first uses of a copper carbene–metal-amido complex, [Cu(IPr)(Cbz)] (1), as an efficient photosensitizer for a broad range of triplet–triplet energy transfer (TTEnT) catalytic processes. Mechanistic studies confirm a triplet–triplet energy-transfer pathway. These findings establish 1 as the first copper-based photosensitizer competent in intermolecular [2+2] cycloaddition involving substrates with ET > 62 kcal/mol and hydrogen atom transfer via EnT, offering a cost-effective, sustainable alternative to noble-metal photocatalysts.
Keywords:
carbene
catalysis
chemistry
copper
cycloaddition
hydrogen atom
intermolecular force
photocatalysis
photochemistry
photosensitizer
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