High-resolution stimulated Brillouin gain spectroscopy of liquid benzene shows no evidence of a "structural transition"
We have used high-resolution stimulated Brillouin gain spectroscopy to search for evidence of a "structural transition" within the liquid phase of benzene. On the basis of previous measurements of depolarized light scattering intensities and Brillouin line shifts, it has been proposed that such a transition occurs in the temperature range 42-48°C (Rozhdestvenskaya, N. B.; Smirnova, L. V. J. Chem. Phys. 1991, 95, 1223). Our highly accurate Brillouin shift measurements show a linear dependence on temperature from 24 to 69°C, with no sign of any anomaly. © 1992 American Chemical Society.
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