Hydrogen bonding of 1-cyclohexyluracil with acetylglycine N-methylamide

Add time:07/13/2019    Source:sciencedirect.com

I.r. spectroscopy was used to determine the enthalpy of hydrogen bond complex formation of 1-cyclohexyluracil with acetylglycine N-methylamide, in chloroform solution. Enthalpy of association is found to be −5.4 Kcal/mole for the dimer of acetylglycine N-methylamide and −4.7 Kcal/mole for the mixed dimers of this dipeptide with 1-cyclohexyluracil. These thermodynamic parameters and the i.r. spectra of the solutions suggest that the structures of these dimers are cyclic.

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