Intramolecular hydrogen bonding in a monoglyceride lipid studied by Fourier transform infrared spectroscopy

1988 ◽  
Vol 92 (20) ◽  
pp. 5639-5642 ◽  
Author(s):  
A. Holmgren ◽  
G. Lindblom ◽  
Lennart B. A. Johansson
2006 ◽  
Vol 110 (47) ◽  
pp. 12887-12890 ◽  
Author(s):  
Guillaume Palaprat ◽  
Jean-Daniel Marty ◽  
Corinne Routaboul ◽  
Armand Lattes ◽  
Anne-Françoise Mingotaud ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (110) ◽  
pp. 108164-108179 ◽  
Author(s):  
Alfonso Martinez-Felipe ◽  
Andrew G. Cook ◽  
Jordan P. Abberley ◽  
Rebecca Walker ◽  
John M. D. Storey ◽  
...  

The relationships between liquid crystallinity and hydrogen bonding are studied in mixtures containing 4-pentoxybenzoic acid, 5OBA, and five bipyridines, XBiPy, with spacers having different flexibilities, by Fourier transform infrared spectroscopy.


1988 ◽  
Vol 42 (6) ◽  
pp. 1049-1056 ◽  
Author(s):  
W. M. Coleman ◽  
Bert M. Gordon

Matrix isolation Fourier transform infrared information has been presented on a series of aliphatic amines, anilines, and amides. The absorptions associated with NH stretches are found at essentially the same energies in both the vapor phase (VP) and matrix isolation (MI) phase. Both the VP and MI values are found at higher energy than the solid state (SS) phase. The similarity of the values for the MI and VP phases is a departure from results found previously for other types of organic compounds. The carbonyl absorptions for the amides (MI) were found to be intermediate between the VP (high) and SS (low) values. This is consistent with established trends for other carbonyl containing compounds. The absorptions for carbonyl groups for the majority of the compounds appear as split absorptions on the order of 20 cm−1 peak to peak. These split absorptions were ascribed to intramolecular hydrogen bonding and rotational conformer isolations. Minor aggregation effects were found to occur as band broadening effects when the ratio of matrix gas (argon) to analyte dropped below 1000:1.


Molecules ◽  
2018 ◽  
Vol 23 (9) ◽  
pp. 2278 ◽  
Author(s):  
Alfonso Martinez-Felipe ◽  
Fraser Brebner ◽  
Daniel Zaton ◽  
Alberto Concellon ◽  
Sara Ahmadi ◽  
...  

We assess the assembly of supramolecular complexes by hydrogen bonding between azocompounds and a diacylaminopyridine monomer by temperature-dependent Fourier transform infrared spectroscopy (FT-IR) and density functional theory (DFT) calculations. The electronic delocalisation in the supramolecular rings formed by multiple hydrogen bonds stabilises the complexes, which coexist with dimeric species in temperature-dependent equilibria. We show how the application of readily available molecular modelling and spectroscopic techniques can predict the stability of new supramolecular entities coexisting in equilibria, ultimately assessing the success of molecular recognition.


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