Understanding and designing thermally activated delayed fluorescence emitters: beyond the energy gap approximation

J Eng, TJ Penfold - The Chemical Record, 2020 - Wiley Online Library
In this article recent progress in the development of molecules exhibiting Thermally
Activated Delayed Fluorescence (TADF) is discussed with a particular focus upon their …

Tuning the fluorescence and the intramolecular charge transfer of phenothiazine dipolar and quadrupolar derivatives by oxygen functionalization

Y Rout, C Montanari, E Pasciucco… - Journal of the …, 2021 - ACS Publications
A series of new naphthalimide and phenothiazine-based push–pull systems (NPI-PTZ1–5),
in which we structurally modulate the oxidation state of the sulfur atom in the thiazine ring, ie …

Controlling Intramolecular Singlet Fission Dynamics via Torsional Modulation of Through-Bond versus Through-Space Couplings

K Majumder, S Mukherjee, NA Panjwani… - Journal of the …, 2023 - ACS Publications
Covalent dimers, particularly pentacenes, are the dominant platform for developing a
mechanistic understanding of intramolecular singlet fission (iSF). Numerous studies have …

Alkoxy-substituted quadrupolar fluorescent dyes

Y Feng, PJ Das, RM Young, PJ Brown… - Journal of the …, 2022 - ACS Publications
Polar and polarizable π-conjugated organic molecules containing push–pull chromophores
have been investigated extensively in the past. Identifying unique backbones and building …

Excited-state symmetry breaking and the Laporte rule

Z Szakacs, E Vauthey - The Journal of Physical Chemistry Letters, 2021 - ACS Publications
Excited-state symmetry breaking (ES-SB) is common to a large number of multibranched
electron donor–acceptor (DA) molecules in polar environments. During this process, the …

Watching excited-state symmetry breaking in multibranched push–pull molecules

E Vauthey - The journal of physical chemistry letters, 2022 - ACS Publications
The emissive properties of symmetric molecules containing several donor–acceptor
branches are often similar to those of the single-branched analogues. This is due to the at …

Direct tracking excited-state intramolecular charge redistribution of acceptor–donor–acceptor molecule by means of femtosecond stimulated Raman spectroscopy

W Zhang, W Xu, G Zhang, J Kong, X Niu… - The Journal of …, 2021 - ACS Publications
Symmetric quadrupolar molecules generally exhibit apolar ground states and dipolar
excited states in a polar environment, which is explained by the excited state evolution from …

Electron-donating strength dependent symmetry breaking charge transfer dynamics of quadrupolar molecules

X Niu, Z Kuang, M Planells, Y Guo… - Physical Chemistry …, 2020 - pubs.rsc.org
The excited state symmetry breaking charge transfer (SBCT) dynamics of two diacetylide-
triphenylamine (DATPA) derivatives with different electron-donating abilities are investigated …

Excited-State Symmetry Breaking and Localization in a Noncentrosymmetric Electron Donor–Acceptor–Donor Molecule

B Dereka, E Balanikas, A Rosspeintner… - The Journal of …, 2024 - ACS Publications
Electronic excitation in quadrupolar conjugated molecules rapidly localizes on a single
electron donor–acceptor (DA) branch when in polar environments. The loss of center of …

Ultrafast symmetry-breaking charge separation in Perylenemonoimide-embedded multichromophores: impact of regioisomerism

R Roy, S Chawla, V Sharma, AK Pal, Y Silori… - Chemical …, 2024 - pubs.rsc.org
Symmetry-breaking charge separation (SB-CS) has recently evolved as an emerging
concept offering its potential to the latest generation of organic photovoltaics. However there …