Thermochemistry of solution of some quaternized derivatives of tetra(4-pyridyl)porphine in water |
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| Authors: | M B Berezin N M Berezina A S Semeikin A I V’yugin |
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| Institution: | (1) Institute of Solution Chemistry, Russian Academy of Sciences, ul. Akademisheskaya 1, Ivanovo, 153045, Russia;(2) Ivanovo State University of Chemical Technology, Ivanovo, Russia |
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| Abstract: | Quaternized tetra(4-pyridyl)porphine derivatives: tetra(N-carboxymethyl-4-pyridyl)porphine tetrachloride, tetra(N-carboxymethyl-4-pyridyl)porphine tetrabromide, tetra(N-methyl-4-pyridyl)porphine tetraiodide, and tetra(N-ethoxycarbonylmethyl-4-pyridyl)porphine tetrachloride, were synthesized, isolated, and purified. The enthalpies of solution of these compounds in water at 298.15 K were determined calorimetrically. The effect of functional substituents in porphyrin ligands on the enthalpies of solution is discussed. |
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