Solvent effect on pyridine derivatives. Molecular iodine donor-acceptor equilibria. The isoquinoline-I2-organic solvent system and the 2,4-lutidine-I2-organic solvent system |
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| Authors: | I Uruska H Karaczewska |
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| Institution: | (1) Department of Physical Chemistry of the Institute of Chemical Engineering, Technical University of Gdańsk, 80-952 Gdańsk, Poland |
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| Abstract: | The absorption spectra of isoquinoline-iodine or 2,4-lutidine-iodine solutions in organic solventsn-hexane,n-heptane, cyclohexane, carbon tetrachloride, benzene, toluene, chlorobenzene, ando-dichlorobenzene have been measured and interpreted in terms of the D+I2=DI2 equilibrium, where D is isoquinoline or 2,4-lutidine. Values ofK (288–320°K), ΔHo, and ΔSo for the reaction were calculated. A correlation between theK values and the solubility parameter of the solvent (Buchowski's relation) has been found. |
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| Keywords: | Isoquinoline 2 4-lutidine iodine solvent effects molecular complexes charge-transfer complexes |
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