Restriction of flip-flop motion as a mechanism for aggregation-induced emission

P Zhou, P Li, Y Zhao, K Han - The Journal of Physical Chemistry …, 2019 - ACS Publications
Although the restriction of intramolecular motion (RIM) has been accepted as a general
working mechanism for the aggregation-induced emission (AIE) phenomenon, some new …

Protonation Isomer Specific Ion–Molecule Radical Reactions

OJ Shiels, SJP Marlton, AJ Trevitt - Journal of the American …, 2023 - ACS Publications
Through a combination of ion-mobility filtering and laser-equipped quadrupole ion–trap
mass spectrometry, the gas-phase reaction kinetics of two protonation isomers of the …

Electronic spectroscopy of homo-and heterometallic binuclear coinage metal phosphine complexes in isolation

MJP Schmitt, SV Kruppa, SP Walg, WR Thiel… - Physical Chemistry …, 2023 - pubs.rsc.org
Binuclear coinage metal phosphine complexes are examined under ion trap isolation in
order to elucidate their noncovalent binding, structural properties and intrinsic electronic …

Electrostatically tuning the photodissociation of the Irgacure 2959 photoinitiator in the gas phase by cation binding

SJP Marlton, BI McKinnon, NS Hill… - Journal of the …, 2021 - ACS Publications
The low-lying electronic states of Irgacure 2959, a Norrish-type I photoinitiator, complexed
with a single metal cation are investigated in the gas phase by photodissociation action …

Selecting and identifying gas-phase protonation isomers of nicotineH+ using combined laser, ion mobility and mass spectrometry techniques

SJP Marlton, BI McKinnon, B Ucur, AT Maccarone… - Faraday …, 2019 - pubs.rsc.org
The detection and assignment of protonation isomers, termed protomers, of gas-phase ions
remains a challenge in mass spectrometry. With the emergence of ion-mobility techniques …

Why the lowest electronic excitations of rhodamines are overestimated by time‐dependent density functional theory

P Zhou - International Journal of Quantum Chemistry, 2018 - Wiley Online Library
Rhodamines are widely used as laser dyes and fluorescent probes due to their excellent
photophysical and photochemical properties. Previous theoretical studies have shown that …

Vibrationally Resolved Absorption, Fluorescence, and Preresonance Raman Spectroscopy of Isolated Pyronin Y Cation at 5 K

S Debnath, A Schäfer, S Ito, D Strelnikov… - The Journal of …, 2023 - ACS Publications
Exploring how charge-changing affects the photoluminescence of small organic dyes
presents challenges. Here, helium tagging photodissociation (PD) action spectroscopy in …

Enhancing intersystem crossing to achieve thermally activated delayed fluorescence in a water-soluble fluorescein derivative with a flexible propenyl group

Y Wu, Y Zhao, P Zhou, D Zheng, H Wang… - The Journal of …, 2020 - ACS Publications
It is a challenge to rationally design an organic molecule with thermally activated delayed
fluorescence (TADF) due to the intrinsically spin-forbidden transition. Meanwhile, those …

Photophysics of isolated rose bengal anions

MH Stockett, C Kjær, S Daly, EJ Bieske… - The Journal of …, 2020 - ACS Publications
Dye molecules based on the xanthene moiety are widely used as fluorescent probes in
bioimaging and technological applications due to their large absorption cross-section for …

The effect of methylation on the intrinsic photophysical properties of simple rhodamines

JCK Kung, A Forman, RA Jockusch - Physical Chemistry Chemical …, 2019 - pubs.rsc.org
The rational design of rhodamines and other fluorescent probes for different functions would
benefit from an improved understanding of their photophysics. Key photophysical properties …