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Updated: Jan 7, 2026

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在金属有机框架中通过终端Cu-Cl站点实现的化学选择性光催化C-H功能

Mary C Eaton1, Akash K Ball2, Katrina E Doherty1

  • 1Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14850, United States.

Journal of the American Chemical Society
|January 2, 2026
PubMed
概括

No abstract available in PubMed .

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The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation
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Some cycloaddition reactions are activated by heat, while others are initiated by light. For example, a [2 + 2] cycloaddition between two ethylene molecules occurs only in the presence of light. It is photochemically allowed but thermally forbidden.
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