Selective-Excitation Pulse Sequences Improve Detection of Cross Peaks in Two-Dimensional NMR of Highly Paramagnetic Metalloproteins

1994 ◽  
Vol 105 (1) ◽  
pp. 91-94 ◽  
Author(s):  
M. Sette ◽  
A. Desideri ◽  
G. Rotilio ◽  
M. Paci
Keyword(s):  
Pulse Sequences ◽  
Selective Excitation ◽  
Excitation Pulse ◽  
Two Dimensional

scholarly journals |B1+|-selective excitation pulse design using the Shinnar–Le Roux algorithm

2014 ◽  
Vol 242 ◽  
pp. 189-196 ◽  
Author(s):  
William A. Grissom ◽  
Zhipeng Cao ◽  
Mark D. Does
Keyword(s):  
Selective Excitation ◽  
Excitation Pulse ◽  
Pulse Design

Total assignment of the 1H and 13C spectra of mikanokryptin and comparison of its solution and solid state conformations

1985 ◽  
Vol 63 (4) ◽  
pp. 849-853 ◽  
Author(s):  
William F. Reynolds ◽  
Raul G. Enríquez ◽  
Marco A. Chavez ◽  
Ana L. Silba ◽  
Miguel A. Martinez
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Pulse Sequences ◽  
Detailed Comparison ◽  
Coupling Constants ◽  
Dihedral Angles ◽  
Two Dimensional ◽  
Spectral Editing ◽  
One Dimensional ◽  
Inversion Recovery Pulse

The 1H and 13C spectra of mikanokryptin are unambiguously assigned using a variety of one-dimensional nmr experiments (selective homonuclear decoupling, use of inversion–recovery pulse sequences to reveal hidden peaks, and DEPT spectral editing) in conjunction with normal and "long range" two-dimensional heteronuclear correlated experiments. Detailed comparison of vicinal, allylic, and homoallylic 1H—1H coupling constants with dihedral angles determined from an earlier crystal structure determination indicates that solution and solid state configurations are similar.

scholarly journals Sequential NMR assignments of labile protons in DNA using two-dimensional nuclear-Overhauser-enhancemnt spectroscopy with three jump-and-return pulse sequences

1987 ◽  
Vol 166 (1) ◽  
pp. 215-220 ◽  
Author(s):  
Gottfried OTTING ◽  
Rolf GRUTTER ◽  
Werner LEUPIN ◽  
Kurt WUTHRICH ◽  
Carlo MINGANTI ◽  
...  
Keyword(s):  
Nmr Assignments ◽  
Pulse Sequences ◽  
Two Dimensional ◽  
Nuclear Overhauser

Notizen: Geminal Coupling Constants 2.J(15N13C) in 2-Substituted Pyridines, Measured by Hahn-Echo Extended (HEED) Pulse Sequences

1993 ◽  
Vol 48 (10) ◽  
pp. 1433-1436
Author(s):  
Bernd Wrackmeyer ◽  
Gerald Kehr
Keyword(s):  
High Resolution ◽  
Nmr Spectra ◽  
Pulse Sequences ◽  
Coupling Constants ◽  
Positive Sign ◽  
Two Dimensional ◽  
H Nmr ◽  
Substituted Pyridines ◽  
Geminal Coupling

Coupling constants 2J(15N13CR) and nJ(15N1HR) in 2-substituted pyridines [R = Me (1), CH=CH2 (2), C≡CH (3), C(O)H (4), C(O)Me (5)] have been measured by using Hahn-echo extended (HEED) pulse sequences for one- (1 D) and two-dimensional (2D) 13C/1H NMR (HEED-INEPT, HEED-HETCOR). The magnitude of |2J(15N13CR)| is hardly affected by the hybridization of 13CR. 15N NMR spectra, measured under conditions of ultra high resolution (UHR) confirm the values 2J(15N13CR). 2D 13C/1H HEED-HETCOR experiments show that the sign of 3J(15Ν1HR) is negative in 1, whereas the coupling constants 3J(15N1HR) in 4 and 4J(15N1HR) in 3 have a positive sign

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