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The influence of the macroring structure on the enthalpies of solution of tetrapyridylporphyrin derivatives in water

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Abstract

The enthalpies of solution of 5,10,15,20-tetra(N-methylpyrid-4,3,2-yl)porphyrin tetraiodide were determined calorimetrically at 298.15 K. Changes in the position of the heteroatom in the pyridyl fragment of the substituted porphyrin (meta- and ortho- positions) substantially decreased the endothermic effect of solution compared with the para- isomer. This was related to changes in the energy of the molecular crystal lattice, which decreased in the series para- > meta- > ortho-isomer.

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Authors and Affiliations

  1. Institute of the Solution Chemistry, Russian Academy of Sciences, Ivanovo, Russia

    M. B. Berezin & A. I. V’yugin

  2. Ivanovo State University of Chemical Technology, Ivanovo, Russia

    N. M. Berezina, M. I. Bazanov, A. S. Semeikin & A. V. Glazunov

Authors
  1. M. B. Berezin
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  2. N. M. Berezina
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  3. M. I. Bazanov
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  4. A. I. V’yugin
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  5. A. S. Semeikin
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  6. A. V. Glazunov
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Corresponding author

Correspondence to M. B. Berezin.

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Original Russian Text © M.B. Berezin, N.M. Berezina, M.I. Bazanov, A.I. V’yugin, A.S. Semeikin, A.V. Glazunov, 2010, published in Zhurnal Fizicheskoi Khimii, 2010, Vol. 84, No. 8, pp. 1591–1593.

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Berezin, M.B., Berezina, N.M., Bazanov, M.I. et al. The influence of the macroring structure on the enthalpies of solution of tetrapyridylporphyrin derivatives in water. Russ. J. Phys. Chem. 84, 1449–1451 (2010). https://doi.org/10.1134/S0036024410080303

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  • DOI: https://doi.org/10.1134/S0036024410080303

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