A Robust, Broadly Absorbing Fulgide Derivative as a Universal Chemical Actinometer for the UV to NIR Region

Matiss Reinfelds, Volker Hermanns, Thomas Halbritter, Josef Wachtveitl, Markus Braun, Tomáš Slanina*, Alexander Heckel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

A fulgide photoswitch is presented as a novel actinometer for a broad range of wavelengths from the UV to the NIR region (340–700 nm). It is easily accessible and has a robust photochemistry and high fatigue resistance. Its photophysics and photochemistry are described in detail. Quantum yields of photoswitching were measured for a series of wavelengths and standardized against known standards (ferrioxalate actinometry, calibrated photodiode). We also present a method for the precise determination of photoswitching quantum yields by global analysis of the whole spectra and an alternative quick and easy method for rapid determination of photon fluxes.

Original languageEnglish
Pages (from-to)441-449
Number of pages9
JournalChemPhotoChem
Volume3
Issue number6
DOIs
Publication statusPublished - 1 Jun 2019

Bibliographical note

Funding Information:
This work was supported by the Deutsche Forschungs‐gemeinschaft (DFG) by means of the research training group “CLiC” (GRK 1986, Complex Light Control) as well as the Collaborative Research Center CRC 902 (Molecular Principles of RNA‐Based Regulation). T.S. thanks Experientia Foundation for a postdoctoral fellowship. A.H. gratefully acknowledges helpful discussions about the metric tensor with Dr. Rainer Hegger (Goethe‐University Frankfurt).

Funding Information:
This work was supported by the Deutsche Forschungs-gemeinschaft (DFG) by means of the research training group ?CLiC? (GRK 1986, Complex Light Control) as well as the Collaborative Research Center CRC 902 (Molecular Principles of RNA-Based Regulation). T.S. thanks Experientia Foundation for a postdoctoral fellowship. A.H. gratefully acknowledges helpful discussions about the metric tensor with Dr. Rainer Hegger (Goethe-University Frankfurt).

Publisher Copyright:
© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Other keywords

  • chemical actinometry
  • fulgides
  • photoswitching
  • spectroscopy
  • visible light

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