Publikation:

An Efficient Continuous Flow Technique for Investigating the Magnetic Field Dependence of Photochemical Quantum Yields

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Steiner_1985_An_Effiecient.pdf
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1985

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Schlenker, Wolfgang

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Berichte der Bunsen-Gesellschaft für Physikalische Chemie. 1985, 89(10), pp. 1041-1046. eISSN 0005-9021. Available under: doi: 10.1002/bbpc.19850891007

Zusammenfassung

A continuous-flow technique has been applied to study the magnetic field effect on the photobleaching quantum yield of thionine in the reaction with aniline in reversed micellar solution and with p-iodoaniline in methanol. The principle of the experimental technique is to irradiate the solution in a flow-through cuvette within a magnetic field which is varied in steps and to observe optical density changes in a second cuvette connected to the first one in a flow system. Although the absolute quantum yields of the two photoreactions are below 1%, relative changes due to the magnetic field effect could be resolved with an accuracy of 1%. The observed effects on the permanent photo bleaching yield closely follow the effects on the radical yield previously observed in time-resolved experiments and are explained by the radical pair mechanism and the triplet mechanism, respectively.

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Fachgebiet (DDC)
540 Chemie

Schlagwörter

Magnetic Field Effects, Methods and Systems, Photochemistry

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ISO 690SCHLENKER, Wolfgang, Ulrich STEINER, 1985. An Efficient Continuous Flow Technique for Investigating the Magnetic Field Dependence of Photochemical Quantum Yields. In: Berichte der Bunsen-Gesellschaft für Physikalische Chemie. 1985, 89(10), pp. 1041-1046. eISSN 0005-9021. Available under: doi: 10.1002/bbpc.19850891007
BibTex
@article{Schlenker1985Effic-9842,
  year={1985},
  doi={10.1002/bbpc.19850891007},
  title={An Efficient Continuous Flow Technique for Investigating the Magnetic Field Dependence of Photochemical Quantum Yields},
  number={10},
  volume={89},
  journal={Berichte der Bunsen-Gesellschaft für Physikalische Chemie},
  pages={1041--1046},
  author={Schlenker, Wolfgang and Steiner, Ulrich}
}
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