Results 221 to 230 of about 6,053,605 (298)

The NMR isoshielding diagram for an f-electron system in a crystal field environment of octahedral symmetry

Journal of Magnetic Resonance (1969), 1982
Abstract A general expression using a nonmultipolar expansion technique is derived for the NMR shift resulting from the f -electron orbital angular momentum and the f -electron spin dipolar-nuclear spin angular momentum interaction, where the f electron is in a crystal field environment of octahedral symmetry.
R.M. Golding, R.O. Pascual, Seungyoung Ahn   +2 more
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Influence of Manganese Ions Environment in Octahedral Sublattice of La0.7Sr0.3Mn0.9Fe0.1 – xMgxO3 + γ Manganites on Their Properties

Inorganic Materials: Applied Research, 2021
Structural, magnetic, and electrical characteristics of manganites in the system La3+0.7Sr2+0.3Mn3+0.6–x-2γMn4+0.3+x+2γFe3+0.1–x Mg2+xO2-3+γ (0 ≤ x ≤ 0.1) synthesized by solid-state reactions are presented. Sintering was performed in air at 1423 K. Samples with stoichiometric oxygen content (γ = 0) were obtained by annealing at 1223 K and a partial ...
V. K. Karpasyuk, A. G. Badelin, Z. R. Datskaya, Р. М. Еремина, D. I. Merkulov, С. Х. Эстемирова, M. A. Aljanov, Z. Seidov   +7 more
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Magnetic susceptibilities of trivalent lanthanide ions in an octahedral environment

The Journal of Chemical Physics, 1974
Magnetic susceptibilities for eight lanthanide ions in Cs2NaLnCl6 were measured from 2.5 to [inverted lazy s] 80°K with a vibrating sample magnetometer. Computer fitting of the data for Cs2NaCeCl6 gave g = 1.43 for the Γ7 ground level, and f2 = 3.85 for the Γ8 excited level.
M. V. Hoehn, D.G. Karraker
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High magnetic fields study of asymmetric Co(II) dimer in octahedral ligand environment

Solid State Communications, 2003
Abstract Magnetic properties of the dinuclear cobalt complex [Co2(ox)tpmc](ClO4)2·3H2O have been studied from the magnetization data obtained in the high magnetic field-low temperature experiment ( B≤20 T , T=4.2 K ). An excellent agreement between experimental and calculated data was achieved within the framework of the isolated ...
Vladan Kusigerski, Vojislav Spasojević, N.Dj. Lazarov, Dragana S Marković, V.M. Matić, Sofija P. Sovilj, M. Guillot   +6 more
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Intermediate-Spin State of a 3d Ion in the Octahedral Environment and Generalization of the Tanabe–Sugano Diagrams

The Journal of Physical Chemistry A, 2011
Electronic spectra of 3d(n) transition ions in an octahedral ligand surrounding have been studied using the modified crystal field approach (MCFA), which includes a relativistic spin-orbital interaction. A new variable parameter, the effective nuclear charge Z(eff) of a metal ion that allows accounting implicitly the covalence degree of a metal-ligand ...
K. V. Lamonova, Elena Zhitlukhina, Roman Yu. Babkin, S. M. Orel, С. Г. Овчинников, Yu. G. Pashkevich   +5 more
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Synthesis of the Germanium(I) Compounds [Ge2Hal4]2– and Their Reductive Condensation to Octahedral [Ge6]2– Clusters in an Organometallic Environment

European Journal of Inorganic Chemistry, 2000
GeI2 reacts with [M2(CO)10]2– (M = Cr, W) leading to reductive coupling of two GeI2 units to produce the [Ge2I4]2– ligands of [{(OC)5M}I2Ge–GeI2{M(CO)5}]2– (1a and 2a). The [Ph4P] salts of these anions have been characterised by X-ray structure analyses as have the [Ph4P] salts of [{(OC)5M}Cl2Ge–GeCl2{M(CO)5}]2– (1b and 2b) obtained from the iodo ...
G. Renner, P. Kircher, Gottfried Hüttner, P. Rutsch, Katja Heinze   +4 more
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Manganese(III) in a pseudo-compressed mixed-donor octahedral environment: synthesis, X-ray crystal structure and physicochemical properties

Polyhedron, 2001
Abstract The compound [C5H10NH2][MnL2] [H2L=N-(2-hydroxynaphthalen-1-yl)sarcosine] has been synthesised and characterised using single-crystal X-ray crystallography, spectroscopy and magnetic susceptibility measurements. The crystallographic asymmetric unit displays two similar, independent [MnL2]− complex ions linked via piperidinium cations through
Musa S. Shongwe, Sandy K Vandayar, Manuel A. Fernandes, Helder M. Marques, Michael J. Morris, S.L. Heath   +5 more
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The NMR chemical shift for a 5d1 system in a crystal-field environment of octahedral symmetry

Journal of Magnetic Resonance (1969), 1987
Abstract From the electronic wavefunctions for 5d orbitals expressed in a common coordinate system, the radial part of the integrals and angular part of the hyperfine interaction integrals are evaluated and expressed in analytical forms. General formulas for the NMR chemical shifts arising from the 5d electron orbital angular momentum and the 5d ...
Sang-Woon Ahn, Se Woung Oh
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Local tetragonal distortions of the octahedral environment for substituting Cr3+, Mn2+ and Fe3+ ions in Rb2ZnF4 crystals

Physica B: Condensed Matter, 1997
The local tetragonal distortions of complexes MF6 formed in Rb2ZnF4 crystals by substitution of Cr3+, Mn2+ and Fe3+ for Zn2+ have been determined from their EPR data. The results are discussed and the intrinsic tetragonal distortion of the host Rb2ZnF4 crystal is assumed.
Wen‐Chen Zheng
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Ligand field splitting in an octahedral environment

Journal of Chemical Education, 1967
Val Marie Johnson
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