Journal ArticleDOI
Investigation of the lowest triplet state of free base porphin by microwave induced changes in its fluorescence
TLDR
The zero-field splitting of the non-phosphorescent lowest triplet state of free base porphin is measured by observing microwave induced changes in the fluorescence of this molecule as a guest in a Shpolskii-matrix of n -octane at 4.2°K.About:
This article is published in Chemical Physics Letters.The article was published on 1973-08-15. It has received 88 citations till now. The article focuses on the topics: Porphin & Triplet state.read more
Citations
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Journal ArticleDOI
Fine-structured spectra of tetraphenylporphin in crystalline nitrobenzene at 5 K
TL;DR: In this article, an unconventional Shpoiskii host -nitrobenzene -was introduced to obtain sharp-line fluorescence and excitation spectra of free-base tetraphenylporphin.
Book ChapterDOI
Triplet Excitons in Weak Organic Charge‐Transfer Crystals
J. Krzystek,J.U. von Schütz +1 more
Journal ArticleDOI
Magnetic field effect on the low temperature triplet state population of an organic molecule
Journal ArticleDOI
Zero field optically detected magnetic resonance (ODMR) of dihydroporphin
TL;DR: In this article, zero field ODMR results for the lowest triplet state T0 of dihydroporphin free base (chlorin), representing the basic skeleton for many photosynthetic pigments, were presented.
References
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Journal ArticleDOI
The lowest triplet state of Zn porphin
TL;DR: In this article, three pairs of microwave transitions with widths of a few MHz are found, all of them corresponding to a decrease in phosphorescence intensity, corresponding to the Shpolskii effect, and it was further established that by pumping either of these transitions a third one can be detected at the difference frequency, so that the order of the levels must be X>Y>Z (or reverse)
Journal ArticleDOI
Optical and Zeeman studies of the first excited singlet state of zinc porphin in a single crystal of n-octane: Evidence for Jahn-Teller instability
TL;DR: In this paper, the absorption and fluorescence spectra of Zn porphin in an n-octane single crystal at 4·2 K are reported in the region between 17 400 and 18 500 cm-1.
Journal ArticleDOI
The lowest triplet state of Zn porphin. II. Investigation of its dynamics by microwave induced delayed phosphorescence
Journal Article
[Study of porphin metal complexes by the method of quasi-linear spectra].
Journal ArticleDOI
Optically Detected Adiabatic Inversion in Phosphorescent Triplet States and the Measurement of Intramolecular Energy Transfer Processes
TL;DR: The theory and observation of microwave induced population inversion within triplet magnetic sublevels in zero field is presented in this paper, where inversion via adiabatic fast passage can be measured quantitatively by changes in triplet phosphorescence and can be accomplished easily and with microwave field strengths even lower than are required for cw saturation.