Accessing room-temperature phosphorescence via a modular quinoline-amine scaffold
- 1Northumbria University
- 2Dresden Integrated Center for Applied Physics and Photonic Materials, Technische Universität Dresden, Nöthnitzer Str. 61, Dresden, Germany
- 3Newcastle University
Abstract
Cinchona alkaloids have played an important part in the history of fluorescence studies and the recent discovery of their long-lived emission makes them a useful tool for exploring new applications in labelling and tagging. Furthermore, they are excellent model systems for exploring the fundamental nature of charge transfer due to the through-space charge transfer between the nitrogen atom on the cage and the quinoline aryl group. However, the synthetic routes and pathways to modification are cumbersome and new synthetic routes are required. Here we demonstrate new synthetic pathways to create a wide range of unnatural quinine analogues giving control over the chromophore point of attachment and N-aryl distance. Furthermore the molecules demonstrate long-lived emission confirming that we are capturing some of the novel photophysical properties of their natural analogues.
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BibTeX
@misc{pollard2026accessing,
title = {{Accessing room-temperature phosphorescence via a modular quinoline-amine scaffold}},
author = {Ruth Pollard and Jinghan Lin and Philipp Wieland and Ashanti Leone and Paul Waddell and Mark Sims and Sebastian Reineke and Sebastian Schellhammer and Jonathan Knowles and Marc Etherington},
howpublished = {ChemRxiv},
year = {2026},
month = sep,
doi = {10.26434/chemrxiv-2025-438hg/v2},
url = {https://chemrxiv.org/doi/full/10.26434/chemrxiv-2025-438hg/v2},
note = {CC BY},
}
RIS
TY - UNPB
TI - Accessing room-temperature phosphorescence via a modular quinoline-amine scaffold
AU - Ruth Pollard
AU - Jinghan Lin
AU - Philipp Wieland
AU - Ashanti Leone
AU - Paul Waddell
AU - Mark Sims
AU - Sebastian Reineke
AU - Sebastian Schellhammer
AU - Jonathan Knowles
AU - Marc Etherington
PY - 2026
DA - 2026/09/19
PB - ChemRxiv
DO - 10.26434/chemrxiv-2025-438hg/v2
UR - https://chemrxiv.org/doi/full/10.26434/chemrxiv-2025-438hg/v2
AB - Cinchona alkaloids have played an important part in the history of fluorescence studies and the recent discovery of their long-lived emission makes them a useful tool for exploring new applications in labelling and tagging. Furthermore, they are excellent model systems for exploring the fundamental nature of charge transfer due to the through-space charge transfer between the nitrogen atom on the cage and the quinoline aryl group. However, the synthetic routes and pathways to modification are cumbersome and new synthetic routes are required. Here we demonstrate new synthetic pathways to create a wide range of unnatural quinine analogues giving control over the chromophore point of attachment and N-aryl distance. Furthermore the molecules demonstrate long-lived emission confirming that we are capturing some of the novel photophysical properties of their natural analogues.
ER -