Publikation:

Real-Time Monitoring of Photoinduced pH Jumps by In Situ Rapid-Scan EPR Spectroscopy

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2024

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European Union (EU): 772027

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The Journal of Physical Chemistry Letters. ACS Publications. 2024, 15(27), S. 7069-7074. eISSN 1948-7185. Verfügbar unter: doi: 10.1021/acs.jpclett.4c00564

Zusammenfassung

This work represents the first demonstration of monitoring kinetics upon a light-induced pH jump by in situ rapid-scan (RS) electron paramagnetic resonance (EPR) spectroscopy on the millisecond time scale. Here, we focus on the protonation state of an imidazolidine type radical as a pH sensor under visible light irradiation of a merocyanine photoacid in bulk solution. The results highlight the utility of photoacids in combination with pH-sensitive spin probes as an effective tool for the real-time investigation of biochemical mechanisms regulated by changes in the pH value.

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540 Chemie

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ISO 690JOHANNSEN, Florian, Lara WILLIAMS, Man Him CHAK, Malte DRESCHER, 2024. Real-Time Monitoring of Photoinduced pH Jumps by In Situ Rapid-Scan EPR Spectroscopy. In: The Journal of Physical Chemistry Letters. ACS Publications. 2024, 15(27), S. 7069-7074. eISSN 1948-7185. Verfügbar unter: doi: 10.1021/acs.jpclett.4c00564
BibTex
@article{Johannsen2024RealT-70424,
  year={2024},
  doi={10.1021/acs.jpclett.4c00564},
  title={Real-Time Monitoring of Photoinduced pH Jumps by In Situ Rapid-Scan EPR Spectroscopy},
  number={27},
  volume={15},
  journal={The Journal of Physical Chemistry Letters},
  pages={7069--7074},
  author={Johannsen, Florian and Williams, Lara and Chak, Man Him and Drescher, Malte}
}
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