Inter- and intramolecular hydrogen bonds in polyamines: variable-concentration 1 H-NMR studies

2011 ◽  
Vol 24 (11) ◽  
pp. 1067-1071 ◽  
Author(s):  
Norma Sbarbati Nudelman ◽  
Cecilia E. Silvana Alvaro
Keyword(s):  
Hydrogen Bonds ◽  
Nmr Studies ◽  
Intramolecular Hydrogen Bonds ◽  
Variable Concentration ◽  
H Nmr ◽  
Intramolecular Hydrogen

scholarly journals A hemicryptophane with a triple-stranded helical structure

2018 ◽  
Vol 14 ◽  
pp. 1885-1889 ◽  
Author(s):  
Augustin Long ◽  
Olivier Perraud ◽  
Erwann Jeanneau ◽  
Christophe Aronica ◽  
Jean-Pierre Dutasta ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Hydrogen Bonds ◽  
Helical Structure ◽  
Aromatic Rings ◽  
Nmr Studies ◽  
Intramolecular Hydrogen Bonds ◽  
X Ray ◽  
H Nmr ◽  
Amine Groups ◽  
Intramolecular Hydrogen

A hemicryptophane cage bearing amine and amide functions in its three linkers was synthesized in five steps. The X-ray molecular structure of the cage shows a triple-stranded helical arrangement of the linkers stabilized by intramolecular hydrogen bonds between amide and amine groups. The chirality of the cyclotriveratrylene unit controls the propeller arrangement of the three aromatic rings in the opposite part of the cage. 1H NMR studies suggest that this structure is retained in solution.

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

scholarly journals Retention of strong intramolecular hydrogen bonds in high polarity solvents in binaphthalene–benzamide derivatives: extensive NMR studies

RSC Advances ◽  
2019 ◽  
Vol 9 (56) ◽  
pp. 32759-32770 ◽  
Author(s):  
Arun Kumar Patel ◽  
Sandeep Kumar Mishra ◽  
Kiran Krishnamurthy ◽  
N. Suryaprakash
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Strong Hydrogen Bond ◽  
Nmr Studies ◽  
Intramolecular Hydrogen Bonds ◽  
Intramolecular Hydrogen ◽  
Benzamide Derivatives ◽  
High Polarity

NMR studies reveal very strong hydrogen bond unbreakable even in high polarity solvents.

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