Do diradicals behave like radicals?

T Stuyver, B Chen, T Zeng, P Geerlings… - Chemical …, 2019‏ - ACS Publications
This review sets out to understand the reactivity of diradicals and how that may differ from
monoradicals. In the first part of the review, we delineate the electronic structure of a …

Unconventional singlet fission materials

T Ullrich, D Munz, DM Guldi - Chemical Society Reviews, 2021‏ - pubs.rsc.org
Singlet fission (SF) is a photophysical downconversion pathway, in which a singlet excitation
transforms into two triplet excited states. As such, it constitutes an exciton multiplication …

A Stable Chichibabin Diradicaloid with Near‐Infrared Emission

X Chang, ME Arnold, R Blinder, J Zolg… - Angewandte Chemie …, 2024‏ - Wiley Online Library
Conjugated molecules with multiple radical centers such as the iconic Chichibabin
diradicaloid hold promise as building blocks in materials for quantum sensing and quantum …

The electronic applications of stable diradicaloids: present and future

X Hu, W Wang, D Wang, Y Zheng - Journal of Materials Chemistry C, 2018‏ - pubs.rsc.org
Organic molecules with unpaired electrons are intriguing for advanced applications in
molecular electronics, spintronics and organic batteries, as well as other possible …

Molecular insights and concepts to engineer singlet fission energy conversion devices

R Casillas, I Papadopoulos, T Ullrich, D Thiel… - Energy & …, 2020‏ - pubs.rsc.org
In this Review, we showcase the fundamental processes of intermolecular and
intramolecular singlet fission (SF). Furthermore we prioritize the information, which is …

Dark State of the Thiele Hydrocarbon: Efficient Solvatochromic Emission from a Nonpolar Centrosymmetric Singlet Diradicaloid

A Punzi, Y Dai, CN Dibenedetto, E Mesto… - Journal of the …, 2023‏ - ACS Publications
In this work, a comprehensive investigation of the photoinduced processes and mechanisms
linked to the luminescence of a novel nonperchlorinated Thiele hydrocarbon (TTH) is …

Negative singlet–triplet excitation energy gap in triangle-shaped molecular emitters for efficient triplet harvesting

J Sanz-Rodrigo, G Ricci, Y Olivier… - The Journal of …, 2021‏ - ACS Publications
The full harvesting of both singlet and triplet excitons can pave the way toward more efficient
molecular light-emission mechanisms (ie, TADF or thermally activated delayed …

Organic Four‐Electron Redox Systems Based on Bipyridine and Phenanthroline Carbene Architectures

PW Antoni, C Golz… - Angewandte Chemie …, 2022‏ - Wiley Online Library
Novel organic redox systems that display multistage redox behaviour are highly sought‐after
for a series of applications such as organic batteries or electrochromic materials. Here we …

Gauging radical stabilization with carbenes

K Breitwieser, H Bahmann, R Weiss… - Angewandte Chemie …, 2022‏ - Wiley Online Library
Carbenes, including N‐heterocyclic carbene (NHC) ligands, are used extensively to
stabilize open‐shell transition metal complexes and organic radicals. Yet, it remains …

Organic redox systems based on pyridinium–carbene hybrids

PW Antoni, T Bruckhoff… - Journal of the American …, 2019‏ - ACS Publications
New redox systems with three oxidation states are highly sought-after, for example, for redox-
flow battery applications, selective reducing agents, or organic electronics. Herein, we …