The measurement of 1JCH values from broad-band decoupled 13C N.M.R. spectra: application to the spectral assignment of cis-Pinan-2-ol

1982 ◽  
Vol 35 (12) ◽  
pp. 2561 ◽  
Author(s):  
JW Blunt ◽  
PJ Steel
Keyword(s):  
Chemical Shift ◽  
Pulse Sequence ◽  
Spin Echo ◽  
Broad Band ◽  
Delay Period ◽  
Assignment Problems ◽  
Chemical Shift Data ◽  
Time Required ◽  
Shift Data ◽  
Spectral Assignment

1JCH values, together with chemical shift data and definite information on the number of protons attached to each carbon in a compound, are available from just three spin-echo Fourier-transform 13C n.m.r. spectra by employing the pulse sequence θ-τ-180�-τ-180�-f.i.d., in which the broad-band proton decoupler is gated off during the first delay period, and with τ values of 6, 8 and 9 ms. The experimental time required for collecting these three spectra will be somewhat less than the total time required for the usual procedures for obtaining the chemical shift data and for attempting to obtain carbon multiplicity and 1JCH data. Recent assignment problems with cis-pinan-2-ol are unambiguously resolved by this technique.

Chemical‐Shift Data for Water and Aqueous Solutions

1966 ◽  
Vol 45 (9) ◽  
pp. 3296-3298 ◽  
Author(s):  
Heinrich H. Rüterjans ◽  
Harold A. Scheraga
Keyword(s):  
Chemical Shift ◽  
Aqueous Solutions ◽  
Chemical Shift Data ◽  
Shift Data

scholarly journals Bayesian inference of protein structure from chemical shift data

PeerJ ◽  
2015 ◽  
Vol 3 ◽  
pp. e861 ◽  
Author(s):  
Lars A. Bratholm ◽  
Anders S. Christensen ◽  
Thomas Hamelryck ◽  
Jan H. Jensen
Keyword(s):  
Protein Structure ◽  
Bayesian Inference ◽  
Chemical Shift ◽  
Chemical Shift Data ◽  
Shift Data

Complex fluoroanions in solution. XI. Complexes of silicon, germanium, and titanium tetrafluorides with simple anions

1980 ◽  
Vol 58 (14) ◽  
pp. 1407-1411 ◽  
Author(s):  
S. Brownstein
Keyword(s):  
Magnetic Resonance ◽  
Chemical Shift ◽  
Silicon Germanium ◽  
Chemical Shift Data ◽  
Shift Data

A fluorine-bridged silicon fluoroanion and many hexa-co-ordinate germanium and titanium fluoroanions have been identified in solution via fluorine magnetic resonance. A generalized shceme is used to correlate all fluorine chemical shift data for hexa-coordinate fluorine containing species.

The chemistry of pyrrolic compounds. LV. 13C chemical shift data for the isomeric protoporphyrins

1984 ◽  
Vol 37 (2) ◽  
pp. 335 ◽  
Author(s):  
RJ Abraham ◽  
PS Clezy ◽  
Lv Thuc
Keyword(s):  
Chemical Shift ◽  
Side Chain ◽  
Methine Carbon ◽  
Chemical Shift Data ◽  
13C Chemical Shift ◽  
Derivatives Of ◽  
Shift Data

The 13C n.m.r, spectra of the 15 isomeric protoporphyrin dimethyl esters have been determined. Measurements were made on the zinc chelate derivatives of the porphyrins in the presence of pyrrolidine and assignments are given for the side chain and methine carbon atoms.

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