Abstract
Acetone and n-hexane form an azeotrope with the mole ratio 2:1. As a result of this phenomenon, some characteristic vibrational modes in FT-IR and some chemical shifts in 1H NMR spectra changes. The amount of these changes is an indication of the extension of interaction between two components and their orientation in unit structure of the cluster. FT-IR and 1H NMR spectra of pure substances and their azeotrope were recorded and spectral changes analyzed. Based on mole ratio of constituents, boiling point depressions, spectral changes in fundamental frequencies, and chemical shifts, unit structure of the azeotrope were deduced.
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