Molecular dynamics of 6-methyl-2-phenyl-2,3-dihydro-4H-chromen-4-one and 6-methyl-2-(4-nitrophenyl)-2,3-dihydro-4H-chromen-4-one (flavanone) derivatives in a solution studied by NMR spectroscopy.

Molecular dynamics of benzoxazepin, oxime, pyrazole, and thiosemicarbazone derivatives of some flavanones have been investigated in a solution using NMR. The results confirm the formation of different O-H···O, O-H···N, N···H-N type intramolecular hydrogen bonds in the pyrazole and oxime molecules. The rotational barrier energy and energy of intramolecular hydrogen bonds have been determined.

Molecular dynamics of cis-1-(2-hydroxy-5- methylphenyl)ethanone oxime and N-(2-hydroxy-4-methylphenyl)acetamide in solution studied by NMR spectroscopy.

The formation of hydrogen bonds and molecular dynamics for the molecules cis-1-(2-hydroxy-5-methylphenyl)ethanone oxime (I) and N-(2-hydroxy-4-methylphenyl)acetamide (II) have been investigated in solution using NMR. The results confirm the formation of O-H..