Intermolecular interactions in the extraction system nicotinic acid-water-poly(N-vinylpyrrolidone)

Computer simulation of molecular structures in the nicotinic acid-water and nicotinic acid-water-poly(N-vinylpyrrolidone) systems was performed, and the IR spectra of these systems were calculated. The theoretical and experimental IR spectra were compared. Parameters of hydrogen bonds in the studied systems were calculated.