Organic thermally activated delayed fluorescence (TADF) compounds used in photocatalysis

MA Bryden, E Zysman-Colman - Chemical Society Reviews, 2021 - pubs.rsc.org
Organic compounds that show Thermally Activated Delayed Fluorescence (TADF) have
become wildly popular as next-generation emitters in organic light emitting diodes (OLEDs) …

Multi‐photon excitation in photoredox catalysis: concepts, applications, methods

F Glaser, C Kerzig, OS Wenger - … Chemie International Edition, 2020 - Wiley Online Library
The energy of visible photons and the accessible redox potentials of common photocatalysts
set thermodynamic limits to photochemical reactions that can be driven by traditional visible …

Reductive electrophotocatalysis: merging electricity and light to achieve extreme reduction potentials

H Kim, H Kim, TH Lambert, S Lin - Journal of the American …, 2020 - ACS Publications
We describe a new electrophotocatalytic strategy that harnesses the power of light and
electricity to generate an excited radical anion with a reducing potential of− 3.2 V vs SCE …

Red light-based dual photoredox strategy resembling the Z-scheme of natural photosynthesis

F Glaser, OS Wenger - JACS Au, 2022 - ACS Publications
Photoredox catalysis typically relies on the use of single chromophores, whereas strategies,
in which two different light absorbers are combined, are rare. In photosystems I and II of …

Molecular Design Principles to Elongate the Metal-to-Ligand Charge Transfer Excited-State Lifetimes of Square-Planar Nickel (II) Complexes

T Ogawa, N Sinha, B Pfund, A Prescimone… - Journal of the …, 2022 - ACS Publications
Square-planar NiII complexes and their electronically excited states play key roles in cross-
coupling catalysis and could offer new opportunities to complement well-known …

Excited state anions in organic transformations

M Schmalzbauer, M Marcon… - Angewandte Chemie …, 2021 - Wiley Online Library
Utilizing light is a smart way to fuel chemical transformations as it allows the energy to be
selectively focused on certain molecules. Many reactions involving electronically excited …

A case of chain propagation: α-aminoalkyl radicals as initiators for aryl radical chemistry

T Constantin, F Juliá, NS Sheikh, D Leonori - Chemical Science, 2020 - pubs.rsc.org
The generation of aryl radicals from the corresponding halides by redox chemistry is
generally considered a difficult task due to their highly negative reduction potentials. Here …

The Tandem Photoredox Catalysis Mechanism of [Ir(ppy)2(dtb-bpy)]+ Enabling Access to Energy Demanding Organic Substrates

TU Connell, CL Fraser, ML Czyz… - Journal of the …, 2019 - ACS Publications
We report the discovery of a tandem catalytic process to reduce energy demanding
substrates, using the [Ir (ppy) 2 (dtb-bpy)]+(1+) photocatalyst. The immediate products of …

Photoredox catalysis via consecutive 2 LMCT-and 3 MLCT-excitation of an Fe (iii/ii)–N-heterocyclic carbene complex

A Ilic, J Schwarz, C Johnson, LHM de Groot… - Chemical …, 2022 - pubs.rsc.org
Fe–N-heterocyclic carbene (NHC) complexes attract increasing attention as
photosensitisers and photoredox catalysts. Such applications generally rely on sufficiently …

Unexpected hydrated electron source for preparative visible-light driven photoredox catalysis

C Kerzig, X Guo, OS Wenger - Journal of the American Chemical …, 2019 - ACS Publications
The hydrated electron is experiencing a renaissance as a superreductant in lab-scale
reductions driven by light, both for the degradation of recalcitrant pollutants and for …