Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Peizhu Tian"'
Publikováno v:
Tetrahedron. 52:8497-8516
The synthesis of biomimetic photosynthetic model compounds, composed of 10, 15, 20-tritolylporphyrins linked to different quinones by cyclohexylene bridges, is described. Cyclic voltammetry measurements show a significant change of the reduction pote
Autor:
J. Schlüpmann, S. N. Batchelor, Klaus Möbius, Harry Kurreck, Peizhu Tian, Christopher W. M. Kay
Publikováno v:
Applied Magnetic Resonance. 9:459-480
Radicals generated photochemically from a covalently linked porphyrin-quinone donor-acceptor system dissolved in reversed micelles and isotropic solution have been studied by steady-state and time-resolved EPR spectroscopy. In these systems photoindu
Autor:
Arno Wiehe, Jörg von Gersdorff, S. Aguirre, Henrik Dieks, Marcus Speck, J. Gätschmann, J. Sobek, Peizhu Tian, Heike Schubert, H. Newman, T. Stabingis, Harry Kurreck
Publikováno v:
Radiation Physics and Chemistry. 45:853-865
Porphyrin quinones (P-Qs), covalently linked via different aliphatic bridges, have been synthesized and studies in their (porphyrin) cationic and (semiquinone) anionic radical states by EPR, ENDOR and TRIPLE resonance techniques. Electron transfer (E
Autor:
Marcus Speck, Dominique Niethammer, J. Sobek, S. N. Batchelor, H. Mößler, Christopher W. M. Kay, Licheng Sun, Harry Kurreck, H. Newman, Jörg von Gersdorff, Peizhu Tian, S. Aguirre, Arno Wiehe, T. Stabingis, Henrik Dieks, Klaus Möbius, J. Schlüpmann
Publikováno v:
Solar Energy Materials and Solar Cells. 38:91-110
Porphyrin quinones (P-Q's), covalently linked via different aliphatic bridges, have been synthesized and studied in their (porphyrin) cationic and (semiquinone) anionic radical states by EPR, ENDOR and TRIPLE resonance techniques. Time-resolved and s
Publikováno v:
Magnetic Resonance in Chemistry. 33:70-76
Radical cations of a series of α-methyl-substituted bi-, ter- and quaterthiophenes were investigated by EPR and, in part, ENDOR spectroscopy. In the case of terthiophenes, the electronic and steric effects of methyl substituents were studied. The ex
Publikováno v:
Angewandte Chemie. 106:2396-2399
Autor:
H. Newman, J. Sobek, Heike Schubert, Peizhu Tian, Harry Kurreck, J. von Gersdorff, Henrik Dieks, T. Stabingis, Arno Wiehe
Publikováno v:
Applied Magnetic Resonance. 6:17-27
From covalently linked porphyrin quinones, dissolved in reversed micellar solutions, porphyrin radical cations and semiquinone radical anions can be generated photochemically. At pH 7 of the water pool the radical species are rather short-lived and c
Publikováno v:
Tetrahedron Letters. 33:5951-5954
trans- and cis- cyclohexylene linked porphyrin ubiquinones(O) have been synthesized and characterized by NMR and optical spectroscopy. ENDOR spectra of the corresponding porphyrin semiquinone radical anions are discussed.
Publikováno v:
Applied Magnetic Resonance. 3:1-18
Various substituted p-benzosemiquinone radical anions, inter alia ubisemiquinone and derivatives, have been investigated in 2-propanol and in reversed micelles by EPR and ENDOR spectroscopy. Unsymmetrical semiquinones, with respect to the oxygen atom
Publikováno v:
Angewandte Chemie International Edition in English. 33:2318-2320