Journal ArticleDOI
Transient EPR emission spectra of a free radical trapped in a single crystal of chloranil
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TLDR
In this paper, the EPR spectrum of a free trapped in single crystals of chloranil changes its phase from absorption to emission when the crystal is illuminated by visible light, and the time evolution of EPR signal is discussed in terms of the interaction between the doublet species and triplet excitons produced by light excitation.About:
This article is published in Chemical Physics Letters.The article was published on 1993-07-30. It has received 23 citations till now. The article focuses on the topics: Chloranil & Electron paramagnetic resonance.read more
Citations
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Journal ArticleDOI
New EPR methods for investigating photoprocesses with paramagnetic intermediates.
Dietmar Stehlik,Klaus Möbius +1 more
TL;DR: Significance and specificity of the results achieved for charge separation in photosynthetic reaction centers and donor-acceptor model complexes indicate highly promising perspectives in photochemical research.
Journal ArticleDOI
Time-resolved EPR, fluorescence, and transient absorption studies on phthalocyaninatosilicon covalently linked to one or two TEMPO radicals.
TL;DR: This study contributes not only to an elucidation of radical-chromophore interactions but also to a novel approach for controlling magnetic properties by photoexcitation.
Journal ArticleDOI
General Simulations of Excited Quartet Spectra with Electron-Spin Polarizations: The Excited Multiplet States of (Tetraphenylporphinato)zinc(II) Coordinated by p- or m-Pyridyl Nitronyl Nitroxides
TL;DR: In this paper, the excited multiplet states of (tetraphenylporphinato)zinc(II) (ZnTPP) coordinated by p-pyridyl nitronyl nitroxide (p-nitpy), and of ZnTPP coordinated by m-nit pyramids, were studied by time-resolved electron paramagnetic resonance.
Journal ArticleDOI
Electron spin dynamics in a pair interaction between radical and electronically-excited molecule as studied by a time-resolved ESR method
Akio Kawai,Kazuhiko Shibuya +1 more
TL;DR: In this paper, a recent review reveals a recent progress in time-resolved (TR-) ESR spectroscopic studies on quenchings of photoexcited state molecules by free radicals.
Journal ArticleDOI
Electron Spin Polarizations of Phthalocyaninatosilicon Covalently Linked to One TEMPO Radical in the Excited Quartet and Doublet Ground States
TL;DR: In this article, a TREPR spectrum at 20 K was assigned to the doublet ground (D0) state and the excited quartet (Q1) state consisting of the excited triplet SiPc and doublet TEMPO radical.
References
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Journal ArticleDOI
A novel radical-triplet pair mechanism for chemically induced electron polarization (CIDEP) of free radicals in solution
C. Blättler,F. Jent,H. Paul +2 more
TL;DR: In this paper, transient alkyl radicals and triplet-state molecules are generated simultaneously in solution by laser flash irradiation, and chemically induced electron polarization (CIDEP) of the radicals is studied by time-resolved ESR spectroscopy.
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Spin polarization generated in the triplet-doublet interaction: hyperfine-dependent chemically induced dynamic electron polarization
Journal ArticleDOI
First observation of a radical-triplet pair mechanism (RTPM) with doublet precursor
Akio Kawai,Kinichi Obi +1 more
Journal ArticleDOI
Laserflash‐photolysis of the p‐Chloranil/naphthalene system: Characterization of the naphthalene radical cation in a fluid medium,
Rudolf Gschwind,Edwin Haselbach +1 more
TL;DR: In this article, a photo-induced current was observed to indicate simultaneous production of CA− formed by electron transfer quenching of 3CA* by the medium, which is unambigously identified as product (besides CA−) of the electron transfer process.
Journal ArticleDOI
Transient ESR nutation signals in excited aromatic triplet states
TL;DR: In this article, the ESR nutation signals following laser pulse excitation are analyzed for the case of the photoexcited triplet state of acridine in a molecular crystal matrix.
Related Papers (5)
A novel radical-triplet pair mechanism for chemically induced electron polarization (CIDEP) of free radicals in solution
C. Blättler,F. Jent,H. Paul +2 more
Spin polarization generated in the triplet-doublet interaction: hyperfine-dependent chemically induced dynamic electron polarization
First observation of a radical-triplet pair mechanism (RTPM) with doublet precursor
Akio Kawai,Kinichi Obi +1 more