Thermodynamics of supramolecule formation between metal porphyrin and pyridine substituted N-methylpyrrolidinyl-[60]fullerene

Tatyana N. Lomova, Michael E. Malov, Michael V. Klyuev, Pavel A. Troshin

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


Thermodynamic characteristics, mechanism, and spectral manifestations of consecutive reactions between (5,10,15,20-tetraphenylporphyrinato)(chloro)indium(III) ((Cl)InTPP) and organic base 2'-(4-pyridyl)-1'-methylpyrrolidinyl-[60]fullerene (PyF) in chloroform were studied using spectrophotometric titration and physicochemical analysis of intermediate forms. The consecutive coordination of two PyF molecules (K1 = 6.9. 104, K2 = 9.3. 103 l/mol at 298 K) with the formation of (Cl)(PyF)InTPP and (Cl)(PyF)2 InTPP, and addition of three other PyF molecules on complex periphery producing (Cl)(PyF)2 InTPP. 3(PyF) (K3 = 2.3 l3/mol3) were observed at the first, second, and third steps. The third reaction stage most likely corresponds to π - π complex formation equilibrium between the aromatic complex and PyF with a 1:3 stoichiometry. Perspectives for use of PyF - metalloporphyrin complex as a photovoltaic material are considered.

Original languageEnglish
Pages (from-to)164-167
Number of pages4
Issue number2
Publication statusPublished - 2009
Externally publishedYes


  • Metal porphyrin
  • Pyridine substituted pyrrolidinyl-[60]fullerene
  • Supramolecule complex formation


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