Nuclear Magnetic Shielding and Quadrupole Coupling of 133Cs in Cesium Salt Powders

1977 ◽  
Vol 32 (9) ◽  
pp. 952-956 ◽  
Author(s):  
A. R. Haase ◽  
M. A. Kerber ◽  
D. Kessler ◽  
J. Kronenbitter ◽  
H. Krüger ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Magnetic Shielding ◽  
First Order ◽  
Cesium Salt ◽  
Reference Scale ◽  
Quadrupole Coupling ◽  
Order Of Magnitude ◽  
Nmr Signals ◽  
Nuclear Magnetic

Abstract NMR signals of 133Cs have been measured in CsI, CsBr, CsCl, Cs2CO3, Cs2SO4, CsNO3 and Cs2CrO4 powders relative to a 0.5 molal aqueous solution of CsCl. Combining these results with the shielding constant of the solution, which has been determined in former measurements, the nuclear magnetic shielding of 133Cs in the crystalline powders can be given in an atomic reference scale. The theoretical values of the shielding constant of 133Cs in CsCl, CsBr and Csl agree only in the order of magnitude with the experimental ones. For 133Cs in Cs2SO4 a first-order quadrupole pattern has been observed.

NMR Spectra of Alkali and Halogen Nuclei in Alkali and Halogen Salts

1978 ◽  
Vol 33 (8) ◽  
pp. 934-939 ◽  
Author(s):  
W. Gauß ◽  
S. Günther ◽  
A. R. Haase ◽  
M. Kerber ◽  
D. Kessler ◽  
...  
Keyword(s):  
Nmr Spectra ◽  
Alkali Halides ◽  
Coupling Constants ◽  
Magnetic Shielding ◽  
First Order ◽  
Quadrupole Coupling ◽  
Shielding Constants ◽  
Order Of Magnitude ◽  
Nmr Signals ◽  
Halogen Salts

NMR signals of 7Li, 23Na, 35Cl, 39K, 79Br, 87Rb and 127I have been measured in various alkali and halogen salt powders relative to well defined aqueous solutions. With the known shielding constants of some of these solutions the nuclear magnetic shielding constants of the alkali and chlorine nuclei in crystalline powders were evaluated in the atomic reference scale. The theoretical values of the shielding constants in alkali halides do not agree even in the order of magnitude with the experimental ones in some cases.For 23Na first-order and second-order quadrupole patterns have been observed and the quadrupole coupling constants are given.

ChemInform Abstract: NUCLEAR MAGNETIC SHIELDING AND QUADRUPOLE COUPLING OF CESIUM-133 IN CESIUM SALT POWDERS

1977 ◽  
Vol 8 (49) ◽  
Author(s):  
A. R. HAASE ◽  
M. A. KERBER ◽  
D. KESSLER ◽  
J. KRONENBITTER ◽  
H. KRUEGER ◽  
...  
Keyword(s):  
Magnetic Shielding ◽  
Cesium Salt ◽  
Quadrupole Coupling ◽  
Nuclear Magnetic

Isotropie and Anisotropie Nuclear Magnetic Shielding of 113Cd in Cadmiumhalides, Cadmiumchalcogenides and in Cadmiumcarbonate

1978 ◽  
Vol 33 (6) ◽  
pp. 666-671 ◽  
Author(s):  
A. Nolle
Keyword(s):  
The Other ◽  
Magnetic Shielding ◽  
Axially Symmetric ◽  
Reference Scale ◽  
Cadmium Chalcogenides ◽  
Shielding Constants ◽  
Powder Samples ◽  
Shielding Tensor ◽  
Nmr Signals ◽  
Nuclear Magnetic

Abstract The NMR signals of 113Cd have been observed in powder samples of the cadmium halides CdF2, CdCl2, CdBr2· 4H2O, Cdl2, of the cadmium chalcogenides CdO, CdS, CdSe, CdTe and of CdCO3 . For 113Cd in CdCl2 , CdBr2-4H2O, CdS and in CdSe anisotropics of the nuclear magnetic shielding have been detected. The shielding tensor in these powders is axially symmetric. For the other specimens no anisotropics of the magnetic shielding have been found. The principal values of the magnetic shielding tensor and the shielding constants are given in an atomic reference scale.

The Z−1 Expansion of the Nuclear Magnetic Shielding Constant and X-Ray Form Factor for 2-, 3-, and 4-Electron Ions

1972 ◽  
Vol 50 (9) ◽  
pp. 947-952 ◽  
Author(s):  
Robert Benesch ◽  
S. R. Singh ◽  
Vedene H. Smith Jr.
Keyword(s):  
Form Factor ◽  
Ground States ◽  
Magnetic Shielding ◽  
X Ray ◽  
First Order ◽  
Hartree Fock ◽  
Nuclear Magnetic

The convergence of the Z−1 expansion of the nuclear magnetic shielding constant σ and the X-ray form factor F(μ) is studied within the Hartree–Fock (HF) approximation for the ground states of 2-, 3-, and 4-electron atoms and ions. The agreement of σ through first order with the total HF σ is excellent, whereas the agreement between first-order and total HF F(μ)'s is unsatisfactory.

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