Abstract
Effects of pressure and solvents on the infrared spectrum of phenol in solutions have been investigated using a hydrostatic high-pressure cell with synthetic diamond windows. For the first time, we performed a quantitative investigation of the effect of pressure on the absolute intensity of OH stretching mode up to 150 MPa (in CCl 4) and 200 MPa (in CS 2). For comparison, we measured the effect of solvents on the absorption intensity. The Polo–Wilson theory, which is the most traditional theory for medium effects on the intensity, was tested for present results. The pressure dependence was in sufficient agreement with their formula, while the solvent dependence is unsatisfactory. This suggests that the traditional intensity correction by Polo–Wilson’s formula is practically valid for pressure-tuning infrared experiments.
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Schedule a callMore From: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
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