Abstract

AbstractRaman spectra of neat liquid cis−2‐butene and cis−2‐butene‐benzene mixtures, covering the accessible composition range at 20°C and atomospheric pressure, have been obtained. Parameters of the benzene bands at 605.6, 1178 and 991.6 cm−1 and cis−2‐butene bands at 395.5, 871.5 and 1660 cm−1 are reported. Changes in the parameters as a function of concentration are interpreted in terms of a weak dipole‐induced dipole interaction and the consequent effect on rotational motions and resonance energy transfer.

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