scholarly journals Isotope Effects on Chemical Shifts in the Study of Intramolecular Hydrogen Bonds

Molecules ◽  
2015 ◽  
Vol 20 (2) ◽  
pp. 2405-2424 ◽  
Author(s):  
Poul Hansen
Keyword(s):  
Hydrogen Bonds ◽  
Chemical Shifts ◽  
Isotope Effects ◽  
Intramolecular Hydrogen Bonds ◽  
Intramolecular Hydrogen

scholarly journals Unusual Effects of Intramolecular Hydrogen Bonds and Dipole Interaction on FTIR and NMR of Some Imines

2019 ◽  
pp. 1-6 ◽  
Author(s):  
Elham Abdalrahem Bin Selim ◽  
Mohammed Hadi Al–Douh
Keyword(s):  
Hydrogen Bonds ◽  
Chemical Shifts ◽  
Dipole Interaction ◽  
Intramolecular Hydrogen Bonds ◽  
X Ray ◽  
X Ray Crystallography ◽  
Dipole Interactions ◽  
Intramolecular Hydrogen

Unusual effects of intramolecular hydrogen bonds and dipole interactions are investigated using FTIR, NMR and X-Ray crystallography analyses of some imines. These phenomena affect both FTIR absorptions and chemical shifts.

NUCLEAR SHIELDING PARAMETERS FOR PROTONS IN HYDROGEN BONDS: II. CORRELATION OF CHEMICAL SHIFTS IN INTRAMOLECULAR HYDROGEN BONDS WITH INFRARED STRETCHING FREQUENCIES

1960 ◽  
Vol 38 (8) ◽  
pp. 1249-1254 ◽  
Author(s):  
L. W. Reeves ◽  
E. A. Allan ◽  
K. O. Strømme
Keyword(s):  
Hydrogen Bond ◽  
Chemical Shift ◽  
Hydrogen Bonds ◽  
Infinite Dilution ◽  
Chemical Shifts ◽  
Intramolecular Hydrogen Bonds ◽  
A Value ◽  
Nuclear Shielding ◽  
Intramolecular Hydrogen ◽  
Hydrogen Bonded

Nuclear shielding parameters have been obtained for 24 intramolecularly hydrogen-bonded phenols and naphthols. The shielding parameters are corrected for large diamagnetic anisotropies and a value ΔσOH obtained which represents the change in shielding parameter in parts per million with reference to the infinite dilution chemical shift of phenol, α-naphthol, or β-naphthol. These values of ΔσOH are approximately proportional to the change ΔvOH in the OH stretching frequency on formation of the hydrogen bond.

Isotopic Perturbation of Intramolecular Hydrogen Bonds in Rigid 1,3-Diols:  NMR Studies Reveal Unusually Large Equilibrium Isotope Effects

1996 ◽  
Vol 61 (26) ◽  
pp. 9610-9613 ◽  
Author(s):  
Bridgette N. Craig ◽  
Matthew U. Janssen ◽  
Brian M. Wickersham ◽  
David M. Rabb ◽  
Peter S. Chang ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Isotope Effects ◽  
Nmr Studies ◽  
Intramolecular Hydrogen Bonds ◽  
Intramolecular Hydrogen
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