RAS Chemistry & Material ScienceЖурнал неорганической химии Russian Journal of Inorganic Chemistry

  • ISSN (Print) 0044-457X
  • ISSN (Online) 3034-560X

Influence of the Nature of the Central Atom on the Basicity of Octa(3,5-di-tert-butylphenoxy)phthalocyanine Complexes

PII
10.31857/S0044457X24100061-1
DOI
10.31857/S0044457X24100061
Publication type
Article
Status
Published
Authors
Volume/ Edition
Volume 69 / Issue number 10
Pages
1405-1412
Abstract
The knowledge of the parameters and mechanisms of proton transfer from the medium to the macrocyclic ligand of highly substituted phthalocyanines complexes is necessary for the optimization of the technological processes of catalysis and creating functional materials. The complexes of octakis(3,5-di-tert-butylphenoxy)phthalocyanine with 3d-metal ions were synthesized and their acid-base reactions were studied using UV-vis and 1H NMR spectroscopy. The chemical structure of the complexes was established using elemental analysis, MALDI-TOF mass spectrometry, IR, 1H NMR and UV-vis spectroscopy. The complete protonation of Co, Ni and Cu complexes occurs in mixtures of dichloromethane – trifluoroacetic acid. The doubly and quadruple protonated forms are identified in the UV-vis spectra. The concentration ranges of existence, UV-vis parameters and thermodynamic stability constants of protonated forms were determined, as well as their relationship with the electronic structure of the coordination center.
Keywords
замещенный фталоцианин комплексы 3d-металлов трифторуксусная кислота–дихлорметан кислотно-основные свойства спектроскопия
Date of publication
17.09.2025
Year of publication
2025
Number of purchasers
0
Views
16

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