Deuterium isotope effect on13C chemical shifts of tetrabutylammonium salts of Schiff bases amino acids

2006 ◽  
Vol 44 (9) ◽  
pp. 881-886 ◽  
Author(s):  
Z. Rozwadowski
Keyword(s):  
Amino Acids ◽  
Isotope Effect ◽  
Schiff Bases ◽  
Chemical Shifts ◽  
Deuterium Isotope Effect

Studies Based on Deuterium Isotope Effect on13C Chemical Shifts

ChemInform ◽  
2005 ◽  
Vol 36 (3) ◽  
Author(s):  
T. Dziembowska ◽  
P. E. Hansen ◽  
Z. Rozwadowski
Keyword(s):  
Isotope Effect ◽  
Chemical Shifts ◽  
Deuterium Isotope Effect

Deuterium Isotope Effect on Shifts of 13C Magnetic Resonance Signals of Sugars: Signal Assignment Studies

1974 ◽  
Vol 52 (3) ◽  
pp. 458-461 ◽  
Author(s):  
Philip A. J. Gorin
Keyword(s):  
Magnetic Resonance ◽  
Isotope Effect ◽  
Chemical Shifts ◽  
Deuterium Isotope Effect ◽  
Signal Assignment

The 13C chemical shifts of nuclei in several sugars undergo an isotope effect 0 to −0.10 p.p.m when a proton in the β position is substituted by a deuteron. The effect may be used for signal assignments in crowded spectra if it is taken into account that lower values are observed for 13C nuclei which are attached to more electronegative groups. The β effect coupled with the elimination of the α-carbon signal have been used to assign signals in c.m.r. spectra of the α- and β-anomers of D-glucose, D-mannose, D-allose, and D-galactose.

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