نتایج جستجو برای: epr spectroscopy

تعداد نتایج: 177850  

Journal: :Journal of the American Chemical Society 2007
Rahul Singh Jack Switala Peter C Loewen Anabella Ivancich

We have characterized the intermediates formed in the peroxidase cycle of the multifunctional heme-containing enzyme KatG of M. tuberculosis. Selected Trp variants from the heme proximal (W321F) and distal (W107F and W91F) sides were analyzed together with the wild-type enzyme with regard to the reaction with peroxyacetic acid and hydrogen peroxide (in the catalase-inactive W107F). The 9 GHz EP...

2015
Sergio Sanz Helen M O'Connor Eufemio Moreno Pineda Kasper S Pedersen Gary S Nichol Ole Mønsted Høgni Weihe Stergios Piligkos Eric J L McInnes Paul J Lusby Euan K Brechin

[Cr(III)8M(II)6](12+) (M(II) =Cu, Co) coordination cubes were constructed from a simple [Cr(III) L3 ] metalloligand and a "naked" M(II) salt. The flexibility in the design proffers the potential to tune the physical properties, as all the constituent parts of the cage can be changed without structural alteration. Computational techniques (known in theoretical nuclear physics as statistical spec...

2017
Klaus Möbius Wolfgang Lubitz Anton Savitsky

In this minireview, we report on our year-long EPR work, such as electron-nuclear double resonance (ENDOR), pulse electron double resonance (PELDOR) and ELDOR-detected NMR (EDNMR) at X-band and W-band microwave frequencies and magnetic fields. This report is dedicated to James S. Hyde and honors his pioneering contributions to the measurement of spin interactions in large (bio)molecules. From t...

Journal: :Journal of magnetic resonance. Series B 1996
Pali Livshits Marsh

The intensities of saturation-transfer EPR (ST-EPR) spectra from nitroxyl spin labels have proved a sensitive means for studying slow exchange processes (both Heisenberg spin exchange and physical/chemical exchange) and weak interactions with paramagnetic ions, via the dependence on the effective spin-lattice relaxation rate (D. Marsh, Appl. Magn. Reson. 3, 53, 1992). The dependences of the sec...

Journal: :Catalysts 2021

The interaction of light with semiconducting materials becomes the center a wide range technologies, such as photocatalysis. This technology has recently attracted increasing attention due to its prospective uses in green energy and environmental remediation. characterization electronic structure semiconductors is essential deep understanding photocatalytic process since they influence govern a...

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