Results 241 to 250 of about 101,690 (303)

The nitrosyl compounds of ferrous animal haloperoxidases

Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 1984
Human myeloperoxidase, human eosinophil peroxidase and bovine lactoperoxidase (donor: hydrogen-peroxide oxidoreductase, EC 1.11.1.7) reduced with ascorbic acid form nitrosyl compounds which show rhombic EPR signals centered at g = 2. Using 14NO (IN = 1), the central resonance signal exhibited a hyperfine structure of nine lines originating from a ...
B G, Bolscher, R, Wever
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The nitrosyl compound of ferrous lactoperoxidase

Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 1984
Abstract The nitrosyl compound of reduced bovine lactoperoxidase (donor:hydrogen-peroxide oxidoreductase, EC 1.11.1.7) has been prepared using two methods of initial reduction prior to exposure to NO; namely, dithionite and electrochemical reduction.
Gunnel Sievers, Jim Peterson, Paul M.A. Gadsby, Andrew J. Thomson   +3 more
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A Superoxo-Ferrous State in a Reduced Oxy-Ferrous Hemoprotein and Model Compounds

Journal of the American Chemical Society, 2003
Cryoreduction of the [FeO2]6 (n = 6 is the number of electrons in 3d orbitals on Fe and pi* orbitals on O2) dioxygen-bound ferroheme through irradiation at 77 K generates an [FeO2]7 reduced oxy-heme. Numerous investigations have examined [FeO2]7 centers that have been characterized as peroxo-ferric centers, denoted [FeO2]per7, in which a ferriheme ...
Roman, Davydov, James D, Satterlee, Hiroshi, Fujii, Alexandra, Sauer-Masarwa, Daryle H, Busch, Brian M, Hoffman   +5 more
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Paramagnetic relaxation in high-spin ferrous compounds

Hyperfine Interactions, 1986
Measurements of three high-spin FeIIS4 complexes at various temperatures and applied magnetic fields are reported and the results are compared with those of reduced rubredoxin. Simulations of the measured spectra by means of the fully developed stochastic theory of lineshape prove that intermediate relaxation behavior is present and is determined ...
H. Winkler, A. Kostikas, V. Petrouleas, A. Simopoulos, A. X. Trautwein   +4 more
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Evidence of critical superparamagnetism in a ferrous compound

Physics Letters A, 1974
Abstract In the Mossbauer spectra of antiferromagnetic ferrous α-Fe SO4 we observe critical superparamagnetism. The effect is indicated by the coexistence of relatively narrow hyperfine-split and paramagnetic spectra as well as a pronounced relaxational quadrupole-doublet asymmetry.
H.L. Wehner, G. Ritter, H.H.F. Wegener
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Organic Compounds in Ferrous Foundry Process Waste Leachates

Journal of Environmental Engineering, 1993
An investigation is conducted to determine the potential for and extent of ground‐water contamination by organic matter arising from ferrous foundry solid‐waste landfills. In the laboratory, the Environmental Protection Agency's (EPA's) toxicity characteristic leaching procedure (TCLP) is used on waste samples representing nine common binder systems to
R. K. Ham, W. C. Boyle, E. C. Engroff, R. L. Fero   +3 more
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Muffin-Tin Radii and Hyperfine Interactions in Ferrous Compounds

AIP Conference Proceedings, 1973
The hyperfine interactions in octahedral iron compounds are discussed in terms of the effective volumes available for the Fe2+ ion in the lattice, as defined by a touching non‐overlapping muffin‐tin model. The data indicate 〈r−3(t2g)〉 ∞ 〈r〉−3 varying by a factor of 3:1 over the covalency range between FeF2 and FeS.
Y. Hazony, Hugh C. Wolfe, C. D. Graham, J. J. Rhyne   +3 more
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