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Issue 7, 1998
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Solubility of I2 and formation of I2–arene charge-transfer complexes in supercritical SF6

Abstract

The solubility of I2(s) has been measured spectrophotometrically in supercritical SF6 with and without the addition of benzene and mesitylene at temperatures, T = 323.95, 330.00 and 340.55 K over the pressure range 2–10 MPa. It was possible to obtain the solubility of iodine and the concentration of the charge-transfer complex from the visible and UV bands of the spectra over the fluid density range 1.0–9.1 mol dm−3. The results support the view that interactions between iodine and the arene molecules are restricted to Lennard-Jones plus multipole interactions. The observed variation with fluid density of the equilibrium concentration quotient for charge-transfer complex formation may be correlated with the density dependence of the excess number of I2–arene collisions. No evidence for the existence of critical clustering has been found.

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Article type: Paper
DOI: 10.1039/A708148K
Citation: J. Chem. Soc., Faraday Trans., 1998,94, 871-878
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    Solubility of I2 and formation of I2–arene charge-transfer complexes in supercritical SF6

    H. Destaillats and R. Fernández-Prini, J. Chem. Soc., Faraday Trans., 1998, 94, 871
    DOI: 10.1039/A708148K

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