Isomeric shift of the 83 keV transition in153Eu

1971 ◽  
Vol 1 (8) ◽  
pp. 336-338 ◽  
Author(s):  
E. Ansaldo ◽  
L. Grodzins ◽  
R. B. Frankel
Keyword(s):  
Isomeric Shift

Lattice parameter effect on the isomeric shift

1962 ◽  
Vol 2 (4) ◽  
pp. 417-420 ◽  
Author(s):  
H. Pollak
Keyword(s):  
Lattice Parameter ◽  
Isomeric Shift

Relation of isomeric shift and quadrupole splitting in M�ssbauer spectra to electronic structure for the iron atom

1968 ◽  
Vol 2 (4) ◽  
pp. 382-386 ◽  
Author(s):  
V. I. Gol'danskii ◽  
E. F. Makarov ◽  
R. A. Stukan
Keyword(s):  
Electronic Structure ◽  
Quadrupole Splitting ◽  
Iron Atom ◽  
Isomeric Shift

Messungen an Fe57 in Calciumaluminatferriten mit Hilfe des Mößbauer-Effekts

1966 ◽  
Vol 21 (6) ◽  
pp. 831-835 ◽  
Author(s):  
F. Wittmann ◽  
F. Pobell
Keyword(s):  
Magnetic Field ◽  
Electric Field ◽  
Electric Field Gradient ◽  
Field Gradient ◽  
Calcium Aluminate ◽  
Isomeric Shift ◽  
Temperature Range ◽  
Octahedral Sites ◽  
The Magnetic Field ◽  
Curie Temperatures

Measurements of the MÖSSBAUER-effect were made on Calcium-Aluminate-Ferrites [2 CaO · (Al2O3) x · (Fe2O3) 1-x] in the temperature range 4.2 °K ≦ Τ ≦ 700 °K. Ferrites with x=0, 1/3, 1/2 were made by sintering. The isomeric-shift is the same for the three ferrites, whereas the quadrupol-splitting is a function of x : ε1 (x=0) = (1.38 ± 0.05) mm/sec, ε2 (x=⅓) = (1.44 ± 0.05) mm/sec, ε3 (x =½) = (1.64 ± 0.05) mm/sec. The CURIE temperatures are Θ1 = (615 ± 4) °K, Θ2 = (490 ± 5) °K and Θ3= (398 ± 10) °K. For T=0 °K the extrapolated values of the magnetic field are independent of x : H0 (tet) = (505 ± 10) kOe and H0 (oct) = (555 ± 10) kOe at the tetrahedral and octahedral sites respectively. Under the assumption of an axial symmetric electric field gradient we calculated the angles between the electric field gradient and the magnetic field at the two lattice sites.

scholarly journals Synthese und Struktur von [Fe(SPh)2(NO)2]- dem „Monomeren“ des Roussinschen Phenylesters/ Synthesis and Structure of [Fe(SPh)2(NO)2]- , the “Monomer” of Roussin’s Phenyl Ester

1986 ◽  
Vol 41 (11) ◽  
pp. 1357-1362 ◽  
Author(s):  
Henry Strasdeit ◽  
Bernt Krebs ◽  
Gerald Henkel
Keyword(s):  
Potassium Hydroxide ◽  
Isomeric Shift ◽  
Phenyl Ester ◽  
Orthorhombic Space Group ◽  
Linear Type ◽  
Tetraethylammonium Chloride ◽  
Mean Values ◽  
X Ray ◽  
Back Bonding ◽  
Subsequent Addition

The complex (Et4N )[Fe(SPh)2(NO)2] (2) has been obtained as black crystals by treatment of K[Fe4S3(NO)7]·H2O with potassium hydroxide in molten diphenyldisulfide and subsequent addition of methanol and tetraethylammonium chloride. 2 is orthorhombic, space group Pbca, Z = 8, with a = 18.853(3), b = 17.958(3), and c = 13.283(2) Å at 140 K. The X-ray structure of 2 has been refined to R1 (R2) = 2.7% (3.1% ). It reveals a pseudotetrahedral S2N2 arrangement around the iron atom (Fe -S 2.280, Fe -N 1.679 Å (mean values), S -Fe -S 109.73(2)°, N -Fe -N 117.36(9)°) and Fe -N -O groups of the linear type (N -O 1.180 Å , Fe -N - O 169.0° (mean values)). The N - O bond order is 2.2. Structural properties as well as the low Mößbauer isomeric shift ( + 0.08 mm/s relative to Fe metal) are indicative of strong Fe - N π-back bonding and a major contribution of the mesomeric form Fe = N = Ō̱ .

Isomeric shift and magnetic hyperfine splitting of muonic atoms in the lead region

1970 ◽  
Vol 33 (5) ◽  
pp. 331-333 ◽  
Author(s):  
V. Klemt ◽  
J. Speth ◽  
K. Göke
Keyword(s):  
Hyperfine Splitting ◽  
Magnetic Hyperfine ◽  
Isomeric Shift ◽  
Muonic Atoms ◽  
Magnetic Hyperfine Splitting

ChemInform Abstract: CORRELATION BETWEEN AN ISOMERIC SHIFT IN IRON-57 NUCLEI AND CERTAIN PARAMETERS OF COMPONENT INTERACTION IN LAVES PHASES OF RFE2 TYPE (R - TRANSITION METAL)

1977 ◽  
Vol 8 (51) ◽  
Author(s):  
B. S. BOKSHTEIN ◽  
N. P. D'YAKONOVA ◽  
G. S. NIKOL'SKII ◽  
YU. D. YAGODKIN
Keyword(s):  
Transition Metal ◽  
Isomeric Shift ◽  
Laves Phases ◽  
Component Interaction

Mössbauer determinations of isomeric shift and quadrupole splitting in some I129 compounds

1963 ◽  
Vol 5 (3) ◽  
pp. 217-220 ◽  
Author(s):  
H. De Waard ◽  
G. De Pasquali ◽  
D. Hafemeister
Keyword(s):  
Quadrupole Splitting ◽  
Isomeric Shift

Is there a linear polarisation effect contributing to the isomeric shift in rotational nuclei?

1970 ◽  
Vol 32 (5) ◽  
pp. 321-322 ◽  
Author(s):  
H.J. Mang ◽  
J. Meyer ◽  
J. Speth ◽  
W. Wild
Keyword(s):  
Isomeric Shift ◽  
Polarisation Effect ◽  
Linear Polarisation

Mössbauer-Effekt am Fe57 in Additions-und Substitutionsverbindungen des Natrium-Nitrosylprussiates / Mössbauer-Effect in Fe57 of Addition and Substitution Compounds of Sodium Nitroprusside

1972 ◽  
Vol 27 (4) ◽  
pp. 565-571
Author(s):  
Ulrich Weihofen
Keyword(s):  
Molecular Structure ◽  
Bond Strength ◽  
Sodium Nitroprusside ◽  
High Purity ◽  
Complex Compounds ◽  
Iron Complex ◽  
Published Data ◽  
Isomeric Shift ◽  
Line Widths ◽  
Very High

Abstract Investigating 21 iron complex compounds of the type [Fe(CN)5NOL]n- or [Fe(CN)5L]3- it was found that isomeric shift, quadrupol splitting, and Goldanskii effect depend on the purity of the compound. Varying the amount of impurity discrepancies between formerly published data could be explained. The Mössbauer spectra of three compounds showed line widths differing from the theoretical value only by a few per cent. This indicated that a very high purity had been achieved. In all cases information about the molecular structure and the bond strength between the central Fe-atom and its ligands was obtained.

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