scholarly journals Major groove width variations in RNA structures determined by NMR and impact of 13C residual chemical shift anisotropy and 1H–13C residual dipolar coupling on refinement

2010 ◽  
Vol 47 (3) ◽  
pp. 205-219 ◽  
Author(s):  
Blanton S. Tolbert ◽  
Yasuyuki Miyazaki ◽  
Shawn Barton ◽  
Benyam Kinde ◽  
Patrice Starck ◽  
...  
2010 ◽  
Vol 12 (45) ◽  
pp. 14873 ◽  
Author(s):  
Guangjin Hou ◽  
Sivakumar Paramasivam ◽  
In-Ja L. Byeon ◽  
Angela M. Gronenborn ◽  
Tatyana Polenova

2016 ◽  
Vol 138 (30) ◽  
pp. 9548-9556 ◽  
Author(s):  
Nilamoni Nath ◽  
Manuel Schmidt ◽  
Roberto R. Gil ◽  
R. Thomas Williamson ◽  
Gary E. Martin ◽  
...  

1999 ◽  
Vol 77 (11) ◽  
pp. 1892-1898 ◽  
Author(s):  
Dharamdat Christendat ◽  
Ian S Butler ◽  
Denis FR Gilson ◽  
Frederick G Morin

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.


2011 ◽  
Vol 50 (40) ◽  
pp. 9487-9490 ◽  
Author(s):  
Fernando Hallwass ◽  
Manuel Schmidt ◽  
Han Sun ◽  
Adam Mazur ◽  
Grit Kummerlöwe ◽  
...  

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