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An Organoborate Monoxide Radical. [PDF]
J Am Chem SocLi S, Xu G, Luo Y, Li ZH, Lu Z.
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A Novel Radical-Triplet Pair Mechanism for Cidep of Free Radicals
The Journal of Physical Chemistry A, 1990Transient radicals and triplet-state molecules are generated simultaneously in solution by laser irradiation, and chemically induced electron polarization (CIDEP) of the radicals is studied by time-resolved ESR spectroscopy. The triplet-state molecules are found to induce emissive electron spin polarizations due to triplet-state quenching by radicals ...
C. Blättler, F. Jent, H. Paul
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The Thermal Sulfenate−Sulfoxide Rearrangement: A Radical Pair Mechanism
Journal of the American Chemical Society, 2000The thermal reaction of sulfenates (RS−OR), yielding their corresponding sulfoxides (RS(O)R), was studied experimentally. The first step of the reaction was found to be the formation a radical pair by homolytic cleavage of the carbon−oxygen bond of the sulfenate.
Jérôme Amaudrut, Olaf Wiest
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Resonance effects indicate a radical-pair mechanism for avian magnetic compass
Nature, 2004Migratory birds are known to use the geomagnetic field as a source of compass information. There are two competing hypotheses for the primary process underlying the avian magnetic compass, one involving magnetite, the other a magnetically sensitive chemical reaction.
Thorsten, Ritz +4 more
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Damage mechanism of hydroxyl radicals toward adenine—thymine base pair
Chinese Physics B, 2014The adenine-thymine base pair was studied in the presence of hydroxyl radicals in order to probe the hydrogen bond effect. The results show that the hydrogen bonds have little effect on the hydroxylation and dehydrogenation happened at the sites, which are not involved in a hydrogen bond, while at the sites involved in hydrogen bond formation in the ...
Rong-Ri Tan +2 more
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Applied Magnetic Resonance, 2009
Novel mechanisms of the electron spin polarization were reported. Effect of spin-selective interactions within the photo-excited preexisting molecular dimers was utilized. Processes occurring within dimers and upon escape from the dimer cage were considered.
Vladimir Rozenshtein +2 more
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Novel mechanisms of the electron spin polarization were reported. Effect of spin-selective interactions within the photo-excited preexisting molecular dimers was utilized. Processes occurring within dimers and upon escape from the dimer cage were considered.
Vladimir Rozenshtein +2 more
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Role of chiral-induced spin selectivity in the radical pair mechanism of avian magnetoreception
Physical Review E, 2022In this paper, we investigate the effect of chiral-induced spin selectivity (CISS) on the radical pair mechanism of avian magnetoreception. We examine the impact of spin selectivity on the avian compass sensitivity. In this analysis, we also consider the dipolar and exchange interactions and observe their interplay with CISS.
Yash Tiwari, Vishvendra Singh Poonia
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Mechanism of primary and secondary ion-radical pair formation in photosystem I complexes
Biochemistry (Moscow), 2014The mechanisms of the ultrafast charge separation in reaction centers of photosystem I (PS I) complexes are discussed. A kinetic model of the primary reactions in PS I complexes is presented. The model takes into account previously calculated values of redox potentials of cofactors, reorganization energies of the primary P700(+)A0(-) and secondary P700(
G E, Milanovsky +3 more
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Journal of Magnetic Resonance (1969), 1985
Abstract It is shown that the conventional use of an equation in which the electron spin polarization is dependent simply upon the square root of the magnetic mixing parameter, Q (see text), is inadequate to account for pure radical pair mechanism polarization effects in isopropyl radicals, and by implication most radicals.
K.A McLauchlan, D.G Stevens
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Abstract It is shown that the conventional use of an equation in which the electron spin polarization is dependent simply upon the square root of the magnetic mixing parameter, Q (see text), is inadequate to account for pure radical pair mechanism polarization effects in isopropyl radicals, and by implication most radicals.
K.A McLauchlan, D.G Stevens
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On the mechanism of multiplet CIDEP in radical ion pairs
Chemical Physics Letters, 1997It is shown that multiplet chemically induced dynamic electron polarization (CIDEP) in radical ion pairs is unlikely to be caused by electron spin exchange (J>0), unless the rate of electron transfer is slowed down either by exciplex formation or by a low Franck-Condon factor.
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