Projects per year
Abstract
The first examples of room temperature (r.t.) 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 r.t. is due to the large bite angles and strong σ‐donation of the ligands, the combined effect of which helps to separate the emissive 3LMCT (triplet ligand‐to‐metal charge transfer) and the non‐emissive 3MC (triplet metal‐centered) states. 1 and 2 were found to be powerful photo‐oxidants (ECo(III)*/Co(II) = 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 (~ 40‐58%).
Original language | English |
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Pages (from-to) | 8027-8031 |
Number of pages | 5 |
Journal | Angewandte Chemie International Edition |
Volume | 57 |
Issue number | 27 |
Early online date | 4 Jun 2018 |
DOIs | |
Publication status | Published - 26 Jun 2018 |
Keywords
- Emissive Co(III) complexes
- Electrochemistry
- DFT calculations
- Photophysics
- Photoredox catalysis
Fingerprint
Dive into the research topics of 'Blue emissive cobalt(III) complexes and their use in the photocatalytic trifluoromethylation of polycyclic aromatic hydrocarbons'. Together they form a unique fingerprint.Projects
- 2 Finished
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Photochemical Self-assembly: Photochemical Self-assembly of Light Harvesting Chromophores to Form Discrete Supramolecules
Pal, A. K. (PI)
1/09/17 → 23/12/19
Project: Fellowship
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Blue-Emitting Phospors: Blue-emitting Phosphors for Solid State Lighting Applications
Zysman-Colman, E. (PI)
1/06/15 → 30/09/19
Project: Standard
Profiles
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Eli Zysman-Colman
- School of Chemistry - Director of Impact, Professor of Optoelectronic Materials
- Centre for Energy Ethics
- Organic Semiconductor Centre
- EaSTCHEM
Person: Academic
Datasets
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Blue emissive cobalt(III) complexes and their use in the photocatalytic trifluoromethylation of polycyclic aromatic hydrocarbons (dataset)
Pal, A. K. (Creator), Li, C. (Creator), Hanan, G. S. (Creator) & Zysman-Colman, E. (Creator), University of St Andrews, 16 Oct 2018
DOI: 10.17630/71e31c65-ecaf-4bdb-985b-b156157cd981
Dataset
File -
CCDC 1011784 - 1011785: Experimental Crystal Structure Determination
Pal, A. K. (Creator), Li, C. (Creator), Hanan, G. S. (Creator) & Zysman-Colman, E. (Creator), Cambridge Crystallographic Data Centre, 2014
https://dx.doi.org/10.5517/ccdc.csd.cc12yv62 and one more link, https://dx.doi.org/10.5517/ccdc.csd.cc12yv73 (show fewer)
Dataset