Results 261 to 270 of about 101,597 (287)

Electric-Field Gradient Tensor in Ferrous Compounds

Physical Review, 1964
The electric-field gradient tensor at the iron nucleus in ferrous (${\mathrm{Fe}}^{2+}$) compounds is investigated. One sees that under the combined action of axial and rhombic crystalline fields and the spin-orbit interaction, the ferrous-ion $(^{5}D,3{d}^{6}){d}_{\ensuremath{\epsilon}}$ states produce a large, temperature-dependent, contribution to ...
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XPS study of surface-active organic compounds on fine ferrous powder

Surface and Interface Analysis, 2000
Controlled adsorption of organic probe molecules in liquid solutions provides information on the interaction between powder and surface-active additives used in metal injection moulding (MIM). The adsorption of such compounds onto stainless-steel powder and carbonyl iron powder is evaluated by means of XPS.
Elisabeth Johansson, Lars Nyborg
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Wet oxidation of inhibitory compounds of distillery spent wash over ferrous sulfate catalyst

Chemical Engineering Communications, 2020
In a distillery, controlled wet oxidation of biomethanated spent wash improves biogas recovery and subsequent biodegradation of wash water.
Ganesh M. Bhoite, Prakash D. Vaidya
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Redox reactions between organic halo-compounds and ferrous cations in isopropanol

Transition Metal Chemistry, 1978
Halo-compounds of which the half-wave reduction potential is equal to or less negative than that of carbon tetrachloride, are reduced by tetrachloroferrate(II) anions. The bimolecular rate constants measured at 250 in isopropanol are 2 × 10−5 M−1 s−1 and 1 × 10−4 M−1 s−1 respectively for CCl4 and CCl3CO2Me.
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On the existence of intermediate compounds between hemoglobin (wholly ferrous) and methemoglobin (wholly ferric)

Experientia, 1947
Experimentelle Befunde vonDarling undRoughton wurden mathematisch mittels der stochiometrischen Gleichung analysiert. Entgegen der Meinung jener Versuche sind der vorgenannten Gleichung nach in einer Losung von Hamoglobin plus Methamoglobin (durch Ferrizyanid) nur Molekule anwesend, deren vier Eisenatome alle in dem Ferro- bzw. in dem Ferrizustand sind.
E, BOERI, A, VESCIA
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Sign of the Nuclear Quadrupole Coupling Constants in Some Ionic Ferrous Compounds

The Journal of Chemical Physics, 1966
Nuclear quadrupole coupling constants have previously been determined for a large number of iron-containing compounds by using the Mössbauer effect. In general, the sign of the coupling constant has not been determined although this parameter can have interesting structural implications. We have used the magnetic perturbation technique to determine the
R. W. Grant, H. Wiedersich, A. H. Muir, U. Gonser, W. N. Delgass   +4 more
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Mössbauer isomer-shift of ferrous iron impurities in ionic and covalent binary compounds

Journal of Physics and Chemistry of Solids, 2019
Abstract We have developed an empirical model to determine Mossbauer isomer-shift of dilute Fe2+ impurities in ionic and covalent binary compounds, where at least one of the host belongs to the metalloids or non-metals category of the periodic system.
H.P. Gunnlaugsson, H. Masenda
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Effect of Pressure on the Spin State of Iron in Ferrous Phenanthroline Compounds

The Journal of Chemical Physics, 1971
The effect of pressure to 175 kbar has been measured on the spin state of Fe(II) in bis- and trisphenanthroline complexes, using Mössbauer resonance and optical absorption. The bis complexes can be classified according to the degree of back bonding to the nonphenanthroline ligands. Compounds with halide ligands are high spin at low pressure.
D. C. Fisher, H. G. Drickamer
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Compound-Layer-Free Nitriding of Ferrous Metals Using Electron-Beam-Excited Nitrogen Plasma

Japanese Journal of Applied Physics, 2007
The nitriding of ferrous metals is primarily carried out to improve the surface hardness resulting from the formation of nitrogen compounds and diffused atomic nitrogen. In this study, we detail the achievements of the compound-layer-free nitriding of ferrous metallic surfaces using a low-power electron-beam-excited plasma in a nitrogen atmosphere. The
Yasuhiro Hara, Yasuharu Yoshikawa, Tamio Hara, Petros Abraha   +3 more
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ChemInform Abstract: COMPLEXES OF FERROUS PHTHALOCYANINE WITH AROMATIC NITROSO COMPOUNDS, ISOCYANIDES, AND PHOSPHITES

Chemischer Informationsdienst, 1976
AbstractDer Fe‐Komplex (Ia) reagiert mit aromatischen Nitrosoverbindungen zu den Komplexen (Ib), während (Ic) durch Einwirkung von N‐Methylimidazol auf den Bis‐[cyclohexylisocyanid)‐eisen(IIyphthalocyaninkomplex und (Id) durch Umsetzung von Nitrosotoluol mit (Ia) in Gegenwart von N‐Methylimidazol erhalten wurden.
JAMES J. WATKINS, ALAN L. BALCH
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