EFFECTS OF HIGH PRESSURE ON THE NEAR ULTRAVIOLET VAPOR ABSORPTION SPECTRUM OF BENZENE IN A NUMBER OF DILUENT $GASES^{*}$

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1958

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Ohio State University

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“The absorption spectrum of benzene vapor in a number of gaseous diluents over a wide range of diluent densities has been obtained. The wavelength of absorption shifts to the red in the gases A, $H_{2}$, $N_{2}$, $CO_{2}$, $O_{2}, CO, C_{2}H_{6}$ and $C_{2}H_{4}$, to the blue in the diluents He and Ne. Since the light absorber is the same in each case, the relative rates of shift, with density should be a function of the physical properties of the diluents. However, no simple correlation has been found to exist between relative shift and such properties of the solvents as polarizability or dielectric constant. Theories of intermolecular interaction appear to be either too approximate to have meaning or too complex to apply satisfactorily to the systems under consideration.”

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$^{*}$This work was supported by the Air Force Office of Scientific Research, Air Research and Development Command, Contract A. F. 19 (038)-35, Project No. 19750.
Author Institution: The University of Texas

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