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Showing 1 to 11 of 11 for “"ESEEM"”.
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X-band ENDOR and S-band ESEEM of paramagnetic disordered solids
X-band ENDOR and S-band ESEEM have been employed in this study to measure weak electron-nuclear hyperfine and nuclear electric quadrupole couplings in paramagnetic disordered solids. In the X-band ENDOR investigation, radicals generated from perylene adsorbed on catalytically active alumina and …
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S-band electron spin echo and multifrequency EPR investigations of disordered solids
… in the electron spin echo envelope modulation (ESEEM) patterns recorded from a sample. Information regarding the distance between the unpaired electron spin and neighboring magnetic nuclei and about the number of nuclei which interact with the unpaired electron spin can be obtained from the …
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Magnetic resonance characterization of gadolinium-based contrast agents
… Spin Echo) method. Analysis of $\sp2$H-ESEEM of Gd TTHA(trimethylenetetraaminehexaacetic acid) demonstrated the existence of the second sphere water. The distance between $\sp2$H-Gd, a$\sb{\rm iso}$, and quadrupolar coupling constants were obtained by computer simulations of …
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The Binding Pockets of QA and QB in the Photosynthetic Reaction Center of Rba. sphaeroides Probed by Pulsed EPR
… spectroscopy. Using the pulsed EPR technique, ESEEM (electron spin echo envelope modulation) the interactions between the reaction center semiquinones and their environment were studied for wild type and a mutant reaction centers. Nitrogen ESEEM modulations showed different nuclear couplings …
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Coherent control of hyperfine-coupled electron and nuclear spins for quantum information processing
… perform electron spin echo envelope modulation (ESEEM) experiments and simple preparation-quantum operation-readout experiments on an ensemble of 1e-1n systems. The data provided evidence that we can generate any unitary operation on an AHF-coupled 1e-1n system while sitting on a single …
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Decoherence and Dynamical Decoupling in Solid-State Spin Qubits
… electron spin echo envelope modulations (ESEEM), an additional source of decoherence resulting from the AHF interactions. Our calculations for the Si:P Hahn echoes, including the effects of both anisotropic hyperfine interactions and spectral diffusion, are in excellent agreement with …
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Magnetic Resonance Studies of Inorganic Oxides and a New Pulse Programming System for Pulsed EMR
… of electron spin echo envelope modulation (ESEEM) patterns using a genetic algorithm.
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EPR and solid-state NMR studies on the mechanism of cytochrome bo3 ubiquinol oxidase from escherichia coli
… oxygen-1 of the semiquinone and produce 14N ESEEM features observed in previous studies. Pulsed EPR experiments performed on these selectively 15N labeled samples also enabled the investigation of nitrogen nuclei weakly coupled to the semiquinone. In addition, three amino-acid pair-wise …
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Qo site of the bc1 complex; unlocking the gate of the electron transport chain
… hypothesis above. More detailed analysis using ESEEM suggests a strong coupling with the electron spin of the reduced 2Fe2S cluster of the iron-sulfur protein, likely involving the pyrrole nitrogen of His 152, and possibly longer-range interaction with the oxidized b-type hemes. However specific …
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A single-crystal EPR study of radiation-induced defects in selected silicates
… electron spin echo envelope modulation (ESEEM) spectroscopy at 25 K. The spin-Hamiltonian parameters show that the O- center (σ-type) represents an unpaired electron in the 2pz orbital of the hydroxyl oxygen atom. A series of weak satellite peaks accompanying the main lines have been …
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Investigating the role of secondary coordination sphere in designed metalloenzymes and engineering protein interactions for enhanced electron transfer
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-05-01