Measurement of Cross Correlation between Dipolar Coupling and Chemical Shift Anisotropy in the Spin Relaxation of13C,15N-Labeled Proteins

1998 ◽  
Vol 135 (2) ◽  
pp. 487-499 ◽  
Author(s):  
Ranajeet Ghose ◽  
Kai Huang ◽  
James H Prestegard
Keyword(s):  
Chemical Shift ◽  
Spin Relaxation ◽  
Cross Correlation ◽  
Dipolar Coupling ◽  
Chemical Shift Anisotropy

scholarly journals Determination of relative tensor orientations by γ-encoded chemical shift anisotropy/heteronuclear dipolar coupling 3D NMR spectroscopy in biological solids

2010 ◽  
Vol 12 (45) ◽  
pp. 14873 ◽  
Author(s):  
Guangjin Hou ◽  
Sivakumar Paramasivam ◽  
In-Ja L. Byeon ◽  
Angela M. Gronenborn ◽  
Tatyana Polenova
Keyword(s):  
Nmr Spectroscopy ◽  
Chemical Shift ◽  
Dipolar Coupling ◽  
Chemical Shift Anisotropy ◽  
3D Nmr ◽  
Biological Solids

Solid-state nuclear magnetic resonance studies of triphenylsilyl-, triphenyltin-, and triphenyllead(pentacarbonyl)manganese(I) complexes

1999 ◽  
Vol 77 (11) ◽  
pp. 1892-1898 ◽  
Author(s):  
Dharamdat Christendat ◽  
Ian S Butler ◽  
Denis FR Gilson ◽  
Frederick G Morin
Keyword(s):  
Solid State ◽  
Chemical Shift ◽  
Dipolar Coupling ◽  
Chemical Shifts ◽  
Chemical Shift Anisotropy ◽  
Coupling Constants ◽  
Spin Coupling ◽  
Chemical Shift Tensors ◽  
Lead Compounds ◽  
Spin Spin Coupling

The solid-state CP MAS (29Si, 119Sn, and 207Pb) NMR spectra of the triphenylsilyl-, triphenyltin-, and triphenyllead(pentacarbonyl)manganese(I) complexes, (Ph3E)Mn(CO)5 (E = Si, Sn, Pb), have been analyzed to give the chemical shifts, one-bond spin-spin coupling constants, 1JE-Mn, the "effective-dipolar" coupling constants (D - ΔJ/3), the chemical shift tensors, and the spin-spin anisotropy (ΔJ), where the analysis permits. For the tin and lead compounds, three and four sets of chemical shifts, respectively, were observed, and two different polymorphs occur for the lead complex, depending on the solvent used for recrystallization. The average values of the reduced coupling constants, 1KMn-Si (2.64 × 1020 T2 J-1), 1KSn-Mn (1.25 × 1020 T2 J-1), and 1KPb-Mn (4.18 × 1020 T2 J-1) showed a linear correlation with the s-electron densities at the respective metal nuclei. The principal components of the chemical shift tensors have been determined for the tin and lead compounds.Key words: manganese-group-14 compounds, solid-state 29Si, 119Sn, and 207Pb CP MAS NMR, spin-spin coupling, chemical shift anisotropy, quadrupole coupling.

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