Journal ArticleDOI
The lowest triplet state of Zn porphin. II. Investigation of its dynamics by microwave induced delayed phosphorescence
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This article is published in Molecular Physics.The article was published on 1971-01-01. It has received 43 citations till now. The article focuses on the topics: Porphin & Phosphorescence.read more
Citations
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The primary photochemical reaction of bacterial photosynthesis
Journal ArticleDOI
Porphyrins. XXVII. Spin‐orbit coupling and luminescence of Group IV complexes
TL;DR: In this article, the spin-orbit interaction is calculated by the extended Huckel model, and it is found that the ligands have far more effect than the metal, in agreement with the data.
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Investigation of the lowest triplet state of free base porphin by microwave induced changes in its fluorescence
TL;DR: 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.
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High resolution spectra of palladium, platinum and copper porphins in n-octane crystals
TL;DR: In this paper, high-resolution Q-band absorption and emission spectra of palladium porphin (PdP), PtP and CuP in slowly grown single crystals of n -octane at 4.2 K are reported.
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Spin polarization in the lowest triplet state of chlorophyll
TL;DR: The spin-lattice relaxation time is found to be anisotropic and shorter than the decay rates of individual spin levels for chlorophyll-b in glassy solution.
References
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Spectra of porphyrins
TL;DR: In this article, the absorption spectra of metal porphyrins derived from the basic skeleton are discussed in terms of a four-orbit model, that is intensity changes and energy shifts are related to the properties of two top filled and two lowest empty pi orbitals.
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Triplet‐Singlet Transitions in Organic Molecules. Lifetime Measurements of the Triplet State
TL;DR: In this paper, the emission lifetimes of the metastable triplet states (phosphorescent states) of a large variety of organic molecules have been measured and it is shown that the transition probabilities corresponding to shorter lifetimes are of the same magnitude as found in the light atoms of which the molecule is composed.
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Polarization of the Luminescence of Phenanthrene
T. Azumi,S. P. McGlynn +1 more
TL;DR: In this article, the polarization of the fluorescence excitation spectrum, fluorescence spectrum and the phosphorescence spectrum of phenanthrene have been determined, and it was shown that fluorescence emission is primarily polarized out of plane.
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Porphyrins: XVIII. Luminescence of (Co), (Ni), Pd, Pt complexes☆
Delyle Eastwood,Martin Gouterman +1 more
TL;DR: In this paper, a large number of Co, Ni, Pd, and Pt porphyrin complexes were examined with the metal in oxidation states I, II, and III, and no case have excitation spectra confirmed that a Co or Ni complex luminesce, and in the purest samples an upper limit of phosphorescence yield is φp
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The dynamics of populating and depopulating the phosphorescent triplet state as studied by microwave induced delayed phosphorescence
TL;DR: In this paper, a system of experiments based on microwave induced signals is presented which enables one to solve the dynamics of populating and depopulating the individual levels of the phosphorescent state.