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Blue‐Emissive Cobalt(III) Complexes and Their Use in the Photocatalytic Trifluoromethylation of Polycyclic Aromatic Hydrocarbons

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Pal, Amlan K., Li, Chenfei, Hanan, Garry S., Zysman‐Colman, Eli·2018·Angewandte Chemie International Edition

Abstract

Room‐temperature luminescent Co III complexes (1 and 2) are presented that exhibit intense ligand‐to‐metal and ligand‐to‐ligand charge transfer absorption in the low‐energy UV region (λabs≈360–400 nm) and low‐negative quasi‐reversible reduction events (E1/2(red)=−0.58 V and −0.39 V vs. SCE for 1 and 2, respectively). The blue emission of 1 and 2 at RT is due to the large bite angles and strong σ‐donation of the ligands, the combined effect of which helps to separate the emissive 3 LMCT (triplet ligand‐to‐metal charge transfer) and the non‐emissive 3 MC (triplet metal‐centered) states. 1 and 2 were found to be powerful photo‐oxidants (E =2.26 V and 2.75 V vs. SCE of 1 and 2, respectively) and were used as inexpensive photoredox catalysts for the regioselective mono(trifluoromethylation) of polycyclic aromatic hydrocarbons (PAHs) in good yields (ca. 40–58 %).

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Metadata

Authors
Pal, A. K., Li, C., Hanan, G. S., & Zysman‐Colman, E.
Venue
Angewandte Chemie International Edition
Publisher
Wiley
Published
2018-06-04
Volume
57
Issue
27
Pages
8027-8031
ISSN
  • 1433-7851 (ISSN-L)
  • 1521-3773
OpenAlex
W2799403769
Cited by
173
References
1
FWCI
5.37
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Blue‐Emissive Cobalt(III) Complexes and Their Use in the Photocatalytic Trifluoromethylation of Polycyclic Aromatic Hydrocarbons. https://app.cochat.ai/papers/10.1002/anie.201802532
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Pal, A. K., Li, C., Hanan, G. S., & Zysman‐Colman, E. (2018). Blue‐Emissive Cobalt(III) Complexes and Their Use in the Photocatalytic Trifluoromethylation of Polycyclic Aromatic Hydrocarbons. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201802532

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