Effect of the complex forming ion on the physicochemical characteristics of solvation of tetraphenylporphine complexes |
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Authors: | A I V'yugin E V Antina G A Krestov |
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Institution: | (1) Institute of Chemistry of Non-Aqueous Solutions, Russian Academy of Sciences, 1 ul. Akademicheskaya, 153018 Ivanovo, Russian Federation |
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Abstract: | The enthalpies of dissolution, transfer, and axial coordination for the Cd(II), Co(II), Mn(III), Fe(III), and Cr(III) complexes of tetraphenylporphine, H2(TPP), in nonpolar (C6H6, CCl4) and electron-donating solvents (DMF, DMSO, Py,c-C5H10NH) have been determined calorimetrically at 298.15 K. On the basis of thermogravimetrical data for the corresponding crystallosolvates the composition, thermal stability, and energy of intermolecular interaction of the metal-porphine complexes with pyridine have been calculated. Complexing in noncoordinating solvents brings about no radical change in the physicochemical characteristics of axial coordination which depend critically on the electron structure of the complex-forming metal.Translated fromfzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 5, pp. 846–850, May, 1993. |
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Keywords: | tetraphenylporphine complexes with metals solvation electron structure thermogravimetry calorimetry |
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