Fermi contact and dipolar nuclear magnetic resonance shifts in paramagnetic ion-paired systems. Anionic lanthanide complexes

1971 ◽  
Vol 10 (11) ◽  
pp. 2463-2471 ◽  
Author(s):  
Ian M. Walker ◽  
Leslie Rosenthal ◽  
M. Saleem Quereshi
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Lanthanide Complexes ◽  
Fermi Contact ◽  
Nuclear Magnetic

Anisotropy of indirect spin–spin coupling constants from nuclear magnetic resonance powder patterns of rigid solids. 1J(31P,199Hg) in [HgP(o-tolyl)3(NO3)2]2

1988 ◽  
Vol 66 (8) ◽  
pp. 1821-1823 ◽  
Author(s):  
Glenn H. Penner ◽  
William P. Power ◽  
Roderick E. Wasylishen
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Coupling Constants ◽  
Spin Coupling ◽  
Coupling Constant ◽  
Spin Coupling Constants ◽  
Fermi Contact ◽  
Spin Spin Coupling ◽  
Contact Mechanism ◽  
Nuclear Magnetic

The anisotropy of the indirect 31P,199Hg spin–spin coupling constant, ΔJ, in solid [HgP(o-tolyl)3(NO3)2]2 is obtained from an analysis of the 31P nuclear magnetic resonance powder pattern. The value of ΔJ, 5170 ± 250 Hz, is large and indicates that mechanisms other than the Fermi contact mechanism are important for this spin–spin coupling. The powder spectrum also indicates that the absolute sign of 1J(31P,199Hg) is positive.

ChemInform Abstract: EVIDENCE FOR EUROPIUM-INDUCED FERMI CONTACT SHIFTS IN CARBON-13 NUCLEAR MAGNETIC RESONANCE SPEKTRA

1973 ◽  
Vol 4 (30) ◽  
pp. no-no
Author(s):  
OTTO A. GANSOW ◽  
PAUL A. LOEFFLER ◽  
RAYMOND E. DAVIS ◽  
M. R. III WILLCOTT ◽  
ROBERT E. LENKINSKI
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Fermi Contact ◽  
Nuclear Magnetic
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